{"id":2619,"date":"2022-09-28T19:39:27","date_gmt":"2022-09-28T10:39:27","guid":{"rendered":"https:\/\/torisetudy.com\/?page_id=2619"},"modified":"2025-04-07T12:23:37","modified_gmt":"2025-04-07T03:23:37","slug":"%e3%81%95%e3%81%be%e3%81%96%e3%81%be%e3%81%aa%e5%8a%9b%e2%91%a0","status":"publish","type":"post","link":"https:\/\/torisetudy.com\/?p=2619","title":{"rendered":"\u3055\u307e\u3056\u307e\u306a\u529b\u2460"},"content":{"rendered":"\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">\u76ee\u6b21<\/p><ul class=\"toc_list\"><li><a href=\"#i\"><span class=\"toc_number toc_depth_1\">1<\/span> \u529b\u306e\u7a2e\u985e<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_1\">2<\/span> \u91cd\u529b<\/a><\/li><li><a href=\"#i-3\"><span class=\"toc_number toc_depth_1\">3<\/span> \u5782\u76f4\u6297\u529b<\/a><\/li><li><a href=\"#i-4\"><span class=\"toc_number toc_depth_1\">4<\/span> \u96e2\u308c\u308b\u30fb\u96e2\u308c\u306a\u3044\u3092\u8003\u3048\u308b\u554f\u984c<\/a><\/li><li><a href=\"#i-5\"><span class=\"toc_number toc_depth_1\">5<\/span> \u5f35\u529b<\/a><\/li><li><a href=\"#i-6\"><span class=\"toc_number toc_depth_1\">6<\/span> \u7cf8\u304c\u305f\u308b\u3080\u30fb\u305f\u308b\u307e\u306a\u3044\u3092\u8003\u3048\u308b\u554f\u984c<\/a><\/li><\/ul><\/div>\n<h2 class=\"wp-block-heading\"><span id=\"i\">\u529b\u306e\u7a2e\u985e<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5834\u306e\u529b\u3068\u63a5\u89e6\u529b<\/h3>\n\n\n\n<p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\uff0c\u5177\u4f53\u7684\u306a\u529b\u3092\u5b66\u7fd2\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u307e\u305a\u306f\u3058\u3081\u306b\uff0c\u5927\u304d\u304f\u5206\u3051\u3066\u529b\u304c2\u7a2e\u985e\u5b58\u5728\u3059\u308b\u3053\u3068\u3092\u7406\u89e3\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<div class=\"wp-block-st-blocks-my-box st-mybox has-title post-hashiro-point\" style=\"background-color:#fff;border-color:#ff7f50\"><p class=\"st-mybox-title\" style=\"color:#ff7f50;font-weight:bold;text-shadow:#fff 3px 0px 0px, #fff 2.83487px .981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff .705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px .42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff .850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;background:linear-gradient(0deg, #fff 0%, #fff 55%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0) 100%)\"><i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"\"><\/i>\u529b\u306e\u5206\u985e<\/p><div class=\"st-in-mybox\">\n<p><span class=\"st-mymarker-s-b\">\u2460 \u5834\u306e\u529b\uff1a\u7269\u4f53\u304c\u5834\u304b\u3089\u53d7\u3051\u308b\u529b<\/span><\/p>\n\n\n\n<p>\u7269\u7406\u57fa\u790e\u306e\u7bc4\u56f2\u3067\u306f\u91cd\u529b\u306e\u307f\u304c\u8a72\u5f53\u3059\u308b\u3002\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u304f\u3068\u304d\u306b\u53cd\u4f5c\u7528\u304c\u5b58\u5728\u3057\u306a\u3044\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><span class=\"st-mymarker-s-b\">\u2461 \u63a5\u89e6\u529b\uff1a\u63a5\u89e6\u3057\u3066\u3044\u308b\u7269\u4f53\u304b\u3089\u53d7\u3051\u308b\u529b<\/span><\/p>\n\n\n\n<p>\u5834\u306e\u529b\u4ee5\u5916\u306e\u3059\u3079\u3066\u306e\u529b\u3002\u3070\u306d\u306e\u5f3e\u6027\u529b\uff0c\u5f35\u529b\uff0c\u5782\u76f4\u6297\u529b\uff0c\u9759\u6b62\u6469\u64e6\u529b\uff0c\u52d5\u6469\u64e6\u529b\uff0c\u6d6e\u529b\u306a\u3069\u3002\u5fc5\u305a\u4f5c\u7528\u30fb\u53cd\u4f5c\u7528\u304c\u30bb\u30c3\u30c8\u306b\u306a\u3063\u3066\u5b58\u5728\u3059\u308b\u3002<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-st-blocks-memo clip-memobox has-icon-label post-hashiro-tyuu\" style=\"color:#808080;background-color:#f5f5f5\"><div class=\"clip-fonticon\" style=\"color:#919191;border-color:#9191914d\"><i class=\"st-fa st-svg-exclamation-circle st-css-no\" data-icon-label=\"\u6ce8\" aria-hidden=\"\"><\/i><\/div><div class=\"clip-memotext\" style=\"color:#808080\">\n<p class=\"has-st-icon has-st-icon-exclamation-circle\">\u91cd\u529b\u306f\u300c\u5730\u7403\u4e0a\u3068\u3044\u3046\u5834\u306b\u5b58\u5728\u3059\u308b\u3042\u3089\u3086\u308b\u7269\u4f53\u304c\u5730\u7403\u304b\u3089\u53d7\u3051\u308b\u529b\u300d\u3068\u8003\u3048\u308c\u3070\u5834\u306e\u529b\u3068\u3057\u3066\u30b9\u30e0\u30fc\u30ba\u306b\u7406\u89e3\u3067\u304d\u308b\u3002<br>\u3057\u304b\u3057\u300c\u91cd\u529b\u306f\u5730\u7403\u304c\u7269\u4f53\u3092\u5f15\u3063\u5f35\u308b\u4e07\u6709\u5f15\u529b\u305d\u306e\u3082\u306e\u300d\u3068\u8003\u3048\u308c\u3070\uff0c\u305d\u306e\u53cd\u4f5c\u7528\u300c\u7269\u4f53\u304c\u5730\u7403\u3092\u5f15\u3063\u5f35\u308a\u8fd4\u3059\u4e07\u6709\u5f15\u529b\u300d\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u306b\u306a\u308b\u3002<br>\u5b9f\u969b\u306b\u554f\u984c\u3092\u89e3\u304f\u969b\u306b\u306f\uff0c\u5730\u7403\u306b\u3064\u3044\u3066\u306f\u8003\u3048\u306a\u3044\u3053\u3068\u304c\u591a\u3044\u305f\u3081\uff0c\u3053\u306e\u300c\u7269\u4f53\u304c\u5730\u7403\u3092\u5f15\u3063\u5f35\u308a\u8fd4\u3059\u4e07\u6709\u5f15\u529b\u300d\u306b\u3064\u3044\u3066\u306f\u89e6\u308c\u306a\u3044\u3067\u8003\u3048\u308b\u3053\u3068\u304c\u5927\u534a\u3002<\/p>\n<\/div><\/div>\n\n\n\n<p>\u3053\u308c\u3089\u306e\u529b\u306b\u3064\u3044\u3066\u5177\u4f53\u7684\u306b\u9806\u756a\u306b\u5b66\u7fd2\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u529b\u306e\u5358\u4f4d<\/h3>\n\n\n\n<p>\u529b\u306e\u5358\u4f4d\u306f $\\punit{kg}$\uff0c$\\punit{m}$\uff0c$\\punit{s}$ \u3092\u7528\u3044\u308b\u3068 $\\mathrm{[kg\\cdot m\/s^{2}]}$ \u3068\u304b\u3051\u307e\u3059\u304c\uff0c\u3053\u308c\u3092\u307e\u3068\u3081\u30661\u3064\u306e\u5358\u4f4d <span class=\"st-mymarker-s\">$\\punit{N}$\uff08\u30cb\u30e5\u30fc\u30c8\u30f3\uff09<\/span>\u3068\u3057\u3066\u6271\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-2\">\u91cd\u529b<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e07\u6709\u5f15\u529b\u306e\u6cd5\u5247\u3068\u91cd\u529b<\/h3>\n\n\n\n<p>\u3042\u3089\u3086\u308b\u7269\u4f53\u306f\u304a\u4e92\u3044\u3092\u5f15\u304d\u3064\u3051\u5408\u3046\u529b\uff08\u4e07\u6709\u5f15\u529b\uff09\u3092\u53ca\u307c\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u304c\u6709\u540d\u306a\u300c\u4e07\u6709\u5f15\u529b\u306e\u6cd5\u5247\u300d\u3067\u3059\u306d\u3002<\/p>\n\n\n\n<p>\u30cb\u30e5\u30fc\u30c8\u30f3\u304c\u6728\u304b\u3089\u843d\u3061\u308b\u308a\u3093\u3054\u3092\u898b\u3066\u3053\u306e\u6cd5\u5247\u306b\u305f\u3069\u308a\u7740\u3044\u305f\u3068\u3044\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u7fbd\u767d\u306f\u6728\u304b\u3089\u843d\u3061\u308b\u308a\u3093\u3054\u3092\u898b\u3066\u3082\u300c\u3042\u30fc\u3042\uff0c\u98df\u3079\u308c\u308b\u308a\u3093\u3054\u304c1\u500b\u6e1b\u3063\u3061\u3083\u3063\u305f\u3088\u2026\u300d\u304f\u3089\u3044\u306e\u3053\u3068\u3057\u304b\u8003\u3048\u3089\u308c\u307e\u305b\u3093\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p>\u3053\u306e\u6cd5\u5247\u304b\u3089\u308f\u304b\u308b\u901a\u308a\uff0c\u5730\u7403\u3068\u5730\u7403\u4e0a\u306e\u7269\u4f53\u306f\u304a\u4e92\u3044\u3092\u5f15\u304d\u3064\u3051\u5408\u3046\u529b\u3092\u53ca\u307c\u3057\u5408\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3046\u3061\uff0c\u5730\u7403\u304c\u5730\u8868\u4ed8\u8fd1\u306e\u7269\u4f53\u3092\u5f15\u3063\u5f35\u308b\u529b\u306f\uff0c\u5834\u6240\u306b\u3088\u3089\u305a\u4e00\u5b9a\u3067\u3042\u308b\u3068\u8003\u3048\u308b\u3053\u3068\u304c\u3067\u304d\uff0c\u305d\u306e\u5927\u304d\u3055\u306f\u7269\u4f53\u306e\u8cea\u91cf $m\\kg$ \u306b\u6bd4\u4f8b\u3059\u308b\u5f62\u3067 <span class=\"st-mymarker-s\">$mg\\N$<\/span> \u306b\u306a\u308b\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u529b\u306e\u3053\u3068\u3092<span class=\"st-mymarker-s\">\u91cd\u529b<\/span>\u3068\u547c\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"100\" height=\"118\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406023.svg\" alt=\"\" class=\"wp-image-2762\"\/><noscript><img decoding=\"async\" width=\"100\" height=\"118\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406023.svg\" alt=\"\" class=\"wp-image-2762\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3053\u3053\u3067\u51fa\u3066\u304d\u305f $g$ \u306f\uff0c\u7b49\u52a0\u901f\u5ea6\u904b\u52d5\u306e\u3068\u3053\u308d\u3067\u5b66\u7fd2\u3057\u305f\u91cd\u529b\u52a0\u901f\u5ea6 $g$ \u3067\u3059\u3002\u307e\u305f\uff0c<span class=\"st-mymarker-s-b\">\u91cd\u529b\u306e\u5411\u304d\u306f\u5fc5\u305a\u925b\u76f4\u4e0b\u5411\u304d\uff08\u5730\u9762\u306b\u5411\u304b\u3046\u5411\u304d\uff09<\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-st-blocks-my-box st-mybox has-title post-hashiro-point\" style=\"background-color:#fff;border-color:#ff7f50\"><p class=\"st-mybox-title\" style=\"color:#ff7f50;font-weight:bold;text-shadow:#fff 3px 0px 0px, #fff 2.83487px .981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff .705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px .42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff .850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;background:linear-gradient(0deg, #fff 0%, #fff 55%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0) 100%)\"><i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"\"><\/i>\u91cd\u529b<\/p><div class=\"st-in-mybox\">\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u8cea\u91cf $m$ \u306e\u7269\u4f53\u306f\uff0c\u925b\u76f4\u4e0b\u5411\u304d\u306b\u5927\u304d\u3055 $mg$ \u306e\u91cd\u529b\u3092\u53d7\u3051\u308b\u3002<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-3\">\u5782\u76f4\u6297\u529b<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5782\u76f4\u6297\u529b\u3068\u306f<\/h3>\n\n\n\n<p>\u63a5\u89e6\u3057\u3066\u3044\u308b\u7269\u4f53\u540c\u58eb\u306f\u304a\u4e92\u3044\u3092\u62bc\u3059\u5411\u304d\u306e\u529b\u3092\u53ca\u307c\u3057\u5408\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5730\u9762\u306b\u7acb\u3063\u3066\u3044\u308b\u4eba\u304c\u5730\u9762\u306b\u3081\u308a\u8fbc\u3093\u3067\u3044\u304b\u306a\u3044\u306e\u3082\u5730\u9762\u304c\u4eba\u3092\u652f\u3048\u308b\uff08\u4e0a\u5411\u304d\u306b\u62bc\u3059\uff09\u529b\u3092\u53ca\u307c\u3057\u3066\u3044\u308b\u305f\u3081\u3067\u3059\u3057\uff0c\u58c1\u306b\u3088\u308a\u304b\u304b\u3063\u305f\u4eba\u304c\u58c1\u306b\u3081\u308a\u8fbc\u3093\u3067\u3044\u304b\u306a\u3044\u306e\u3082\u58c1\u304c\u4eba\u3092\u652f\u3048\u308b\uff08\u6a2a\u5411\u304d\u306b\u62bc\u3059\uff09\u529b\u3092\u53ca\u307c\u3057\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u529b\u3092<span class=\"st-mymarker-s\">\u5782\u76f4\u6297\u529b<\/span>\u3068\u547c\u3073\u307e\u3059\u3002\u5411\u304d\u306f<span class=\"st-mymarker-s\">\u63a5\u89e6\u9762\u306b\u5bfe\u3057\u3066\u5782\u76f4\u306a\u65b9\u5411<\/span>\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon2 clearfix\"><div class=\"st-kaiwa-area2\"><div class=\"st-kaiwa-hukidashi2\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u5411\u304d\u3060\u3051\u3058\u3083\u306a\u304f\u3066\uff0c\u5927\u304d\u3055\u3082\u6559\u3048\u3066\u307b\u3057\u3044\u306e\u3067\u3059\u304c\u2026\u3002<\/p>\n<\/div><\/div><\/div><div class=\"st-kaiwa-face2\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u7591\u554f\uff09.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u7591\u554f\uff09.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name2\">\u751f\u5f92<\/div><\/div><\/div>\n\n\n\n<p>\u5782\u76f4\u6297\u529b\u306e\u5927\u304d\u3055\u306f\u554f\u984c\u3092\u89e3\u3044\u3066\u307f\u306a\u3044\u3068\u308f\u304b\u308a\u307e\u305b\u3093\uff01\u91cd\u529b $mg$ \u306e\u3088\u3046\u306b\uff0c\u300c\u5fc5\u305a\u3053\u306e\u5f62\u3067\u304b\u3051\u308b\u300d\u3068\u3044\u3046\u3082\u306e\u304c\u306a\u3044\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u3084\uff0c\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u7528\u3044\u3066\u8a08\u7b97\u3057\u3066\u306f\u3058\u3081\u3066\u6c42\u307e\u308b\u306e\u3067\uff0c\u6700\u521d\u306b\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u304f\u6bb5\u968e\u3067\u306f\u4f55\u3089\u304b\u306e\u6587\u5b57\uff08$N$ \u3084 $R$ \u3092\u7528\u3044\u308b\u3053\u3068\u304c\u591a\u3044\uff09\u3092\u4f7f\u3063\u3066\u81ea\u5206\u3067\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"98\" height=\"98\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406024.svg\" alt=\"\" class=\"wp-image-2763\"\/><noscript><img decoding=\"async\" width=\"98\" height=\"98\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406024.svg\" alt=\"\" class=\"wp-image-2763\"\/><\/noscript><\/figure>\n\n\n\n<p>\u6163\u308c\u3066\u304f\u308b\u3068\u306a\u305c\u304b\u6700\u521d\u304b\u3089\u5782\u76f4\u6297\u529b\u3092 $mg$ \u3084\u3089 $mg\\cos\\theta$ \u3068\u3044\u304d\u306a\u308a\u304b\u304f\u4eba\u304c\u5897\u3048\u3066\u3057\u307e\u3046\u306e\u3067\u3059\u304c\uff0c<span class=\"st-mymarker-s-b\">\u3044\u304b\u306a\u308b\u5834\u5408\u3067\u3082\u5fc5\u305a\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u304f\u969b\u306b\u306f\u5782\u76f4\u6297\u529b\u3092\u6587\u5b57\u3067\u8a2d\u5b9a<\/span>\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4f5c\u7528\u30fb\u53cd\u4f5c\u7528\u306e\u6cd5\u5247\u3092\u8e0f\u307e\u3048\u3066<\/h3>\n\n\n\n<p>\u5782\u76f4\u6297\u529b\u306e\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u304f\u969b\u306b\u306f\u7279\u306b<span class=\"st-mymarker-s-b\">\u4f5c\u7528\u30fb\u53cd\u4f5c\u7528\u3092\u610f\u8b58\u3059\u308b<\/span>\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u7269\u4f53A\u304c\u7269\u4f53B\u3092\u62bc\u3059\u5782\u76f4\u6297\u529b\u3092\u898b\u3064\u3051\u305f\u306e\u3067\u3042\u308c\u3070\uff0c\u5fc5\u305a\u7269\u4f53B\u3082\u7269\u4f53A\u306b\u5782\u76f4\u6297\u529b\u3092\u53ca\u307c\u3057\u8fd4\u3057\u3066\u3044\u308b\uff08\u53cd\u4f5c\u7528\uff09\u306e\u3067\uff0c\u7b49\u5927\u9006\u5411\u304d\u3068\u306a\u308b\u3088\u3046\u306b\u529b\u306e\u4f5c\u7528\u56f3\u306b\u304b\u304d\u8fbc\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u554f\u984c\u3078\u306e\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n\n\n\n<p>\u3067\u306f\uff0c\u5177\u4f53\u7684\u306a\u554f\u984c\u3092\u901a\u3058\u3066\uff0c\u529b\u306e\u4f5c\u7528\u56f3\u306e\u304b\u304d\u65b9\uff0c\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u306e\u7acb\u3066\u65b9\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"wp-block-st-blocks-midashi-box freebox has-title post-hashiro-reidai\" style=\"background-color:#f7f7fb;border-width:3px;border-color:#a3bded\"><p class=\"p-free\" style=\"border-color:#a3bded;font-weight:bold\"><span class=\"p-entry-f\" style=\"color:#ffffff;font-weight:bold;background-color:#a3bded\"><i class=\"st-fa st-svg-pencil st-css-no\" aria-hidden=\"\"><\/i>\u4f8b\u984c<\/span><\/p><div class=\"free-inbox\">\n<p>\u56f3\u306e\u3088\u3046\u306b\uff0c\u8cea\u91cf $m$ \u306e\u7269\u4f53A\u304c\u8cea\u91cf $M$ \u306e\u7269\u4f53B\u306e\u4e0a\u306b\u7f6e\u304b\u308c\u3066\u3044\u308b\u3002\u4ee5\u4e0b\u306e\u554f\u3044\u306b\u7b54\u3048\u3088\u3002\u305f\u3060\u3057\uff0c\u91cd\u529b\u52a0\u901f\u5ea6\u306e\u5927\u304d\u3055\u3092 $g$ \u3068\u3059\u308b\u3002<\/p>\n\n\n\n<p class=\"setumonnkakko\">\u7269\u4f53B\u304c\u7269\u4f53A\u306b\u53ca\u307c\u3059\u5782\u76f4\u6297\u529b\u306e\u5927\u304d\u3055 $N_1$ \u3092\u6c42\u3081\u3088\u3002<\/p>\n\n\n\n<p class=\"setumonnkakko\">\u5730\u9762\u304c\u7269\u4f53B\u306b\u53ca\u307c\u3059\u5782\u76f4\u6297\u529b\u306e\u5927\u304d\u3055 $N_2$ \u3092\u6c42\u3081\u3088\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"141\" height=\"78\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406025.svg\" alt=\"\" class=\"wp-image-2764\"\/><noscript><img decoding=\"async\" width=\"141\" height=\"78\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406025.svg\" alt=\"\" class=\"wp-image-2764\"\/><\/noscript><\/figure>\n<\/div><\/div>\n\n\n\n<p>\u3053\u3046\u3057\u305f\u554f\u984c\u3092\u89e3\u304f\u969b\u306b\u306f\u307e\u305a\u306f\u3058\u3081\u306b\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u969b\uff0c<span class=\"st-mymarker-s\">\u529b\u306e\u4f5c\u7528\u56f3\u306f\u7269\u4f53\u3054\u3068\u306b\u5206\u3051\u3066\u304b\u304f<\/span>\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\uff08\u304b\u304f\u969b\u306e\u624b\u9806\u306f\u3053\u308c\u304b\u3089\u8aac\u660e\u3057\u307e\u3059\uff09\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u3053\u308c\u306f\u3068\u3066\u3082\u3068\u3066\u3082\u91cd\u8981\u3067\u3059\u306e\u3067\u5fc5\u305a\u7fd2\u6163\u3065\u3051\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p>\u554f\u984c\u6587\u306e\u56f3\u306f\u305f\u3044\u3066\u3044\u7269\u4f53\u304c\u307e\u3068\u307e\u3063\u3066\u304b\u304b\u308c\u3066\u3044\u308b\u306e\u3067\uff0c\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u304f\u3068\u304d\u306b\u306f\u554f\u984c\u7528\u7d19\u306e\u56f3\u306b\u304b\u304d\u8fbc\u307e\u305a\u306b\uff0c\u81ea\u5206\u3067\u30a4\u30c1\u304b\u3089\u304b\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6700\u521d\u306f\u9762\u5012\u306b\u611f\u3058\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\uff0c\u3053\u306e\u70b9\u3092\u5fb9\u5e95\u3057\u306a\u3044\u3068\u7d76\u5bfe\u306b\u3069\u3053\u304b\u3067\u75db\u3044\u76ee\u306b\u3042\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306e\u554f\u984c\u3067\u6bd4\u8f03\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u307e\u305a\u306f\u3059\u3079\u3066\u3092\u307e\u3068\u3081\u3066\u304b\u3044\u305f\u529b\u306e\u4f5c\u7528\u56f3\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"131\" height=\"126\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406026A.svg\" alt=\"\" class=\"wp-image-2766\"\/><noscript><img decoding=\"async\" width=\"131\" height=\"126\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406026A.svg\" alt=\"\" class=\"wp-image-2766\"\/><\/noscript><\/figure>\n\n\n\n<p>\u7d9a\u3044\u3066\uff0c\u7269\u4f53\u3054\u3068\u306b\u308f\u3051\u3066\u304b\u3044\u305f\u529b\u306e\u4f5c\u7528\u56f3\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"159\" height=\"120\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406026B.svg\" alt=\"\" class=\"wp-image-2767\"\/><noscript><img decoding=\"async\" width=\"159\" height=\"120\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406026B.svg\" alt=\"\" class=\"wp-image-2767\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3069\u3061\u3089\u304c\u30b9\u30c3\u30ad\u30ea\u3057\u3066\u3044\u308b\u304b\uff0c\u3044\u3046\u307e\u3067\u3082\u306a\u3044\u3067\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<p>\u307e\u3068\u3081\u305f\u529b\u306e\u4f5c\u7528\u56f3\u3067\u306f\uff0c\u3069\u306e\u529b\u304c\u3069\u306e\u7269\u4f53\u306b\u4f5c\u7528\u3057\u3066\u3044\u308b\u529b\u306a\u306e\u304b\u304c\u975e\u5e38\u306b\u308f\u304b\u308a\u306b\u304f\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u3082\uff0c\u904b\u52d5\u65b9\u7a0b\u5f0f\u3082\uff0c\u539f\u5247\u7684\u306b\u7269\u4f53\u3054\u3068\u306b\u7acb\u5f0f\u3059\u308b\u308f\u3051\u3067\u3059\u304b\u3089\uff0c\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u304f\u6bb5\u968e\u3067\u7269\u4f53\u3054\u3068\u306b\u6574\u7406\u3057\u3066\u3057\u307e\u3046\u3068\u975e\u5e38\u306b\u30b9\u30e0\u30fc\u30ba\u306a\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u3067\u306f\u7269\u4f53\u3054\u3068\u306b\u305d\u308c\u305e\u308c\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u304f\u624b\u9806\u3092\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p>\u7269\u4f53A\u3082\u7269\u4f53B\u3082\u307e\u305a\u306f\u3058\u3081\u306b\uff0c\u5834\u306e\u529b\u3067\u3042\u308b\u91cd\u529b\u3092\u304b\u304d\u8fbc\u307f\u307e\u3059\u3002\u6b21\u306b\uff0c\u305d\u308c\u4ee5\u5916\u306e\u529b\uff08\u63a5\u89e6\u529b\uff09\u3092\u63a2\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading is-style-st-heading-custom-count post-hashiro-countA\">\u7269\u4f53A\u306b\u3064\u3044\u3066<\/h3>\n\n\n\n<p>\u7269\u4f53A\u306f\u7269\u4f53B\u3068\u3057\u304b\u63a5\u89e6\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u843d\u4e0b\u3057\u3066\u3044\u304b\u306a\u3044\u3088\u3046\u306b\u7269\u4f53B\u306b\u652f\u3048\u3066\u3082\u3089\u3063\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u304b\u3089\uff0c\u4e0a\u5411\u304d\u306e\u5782\u76f4\u6297\u529b $N_1$\uff08\u7269\u4f53B\u304c\u7269\u4f53A\u3092\u652f\u3048\u308b\u529b\uff09\u304c\u4f5c\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"83\" height=\"96\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406027.svg\" alt=\"\" class=\"wp-image-2768\"\/><noscript><img decoding=\"async\" width=\"83\" height=\"96\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406027.svg\" alt=\"\" class=\"wp-image-2768\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3068\u3044\u3046\u3053\u3068\u306f\uff0c\u305d\u306e\u53cd\u4f5c\u7528\uff08\u7269\u4f53A\u304c\u7269\u4f53B\u3092\u62bc\u3057\u8fd4\u3059\u529b\uff09\u3082\u5b58\u5728\u3059\u308b\u308f\u3051\u3067\u3059\u304b\u3089\uff0c\u3053\u306e\u6bb5\u968e\u3067\u53cd\u4f5c\u7528\u3082\u7269\u4f53B\u306e\u529b\u306e\u4f5c\u7528\u56f3\u306b\u304b\u304d\u8fbc\u3093\u3067\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f5c\u7528\u30fb\u53cd\u4f5c\u7528\u306e\u6cd5\u5247\u3092\u8e0f\u307e\u3048\u308b\u3068\uff0c\u4e0b\u5411\u304d\u306b $N_1$ \u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0a\u3067\u7269\u4f53A\u306e\u529b\u306e\u4f5c\u7528\u56f3\u304c\u5b8c\u6210\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading is-style-st-heading-custom-count post-hashiro-countA\">\u7269\u4f53B\u306b\u3064\u3044\u3066<\/h3>\n\n\n\n<p>\u7269\u4f53B\u304c\u63a5\u89e6\u3057\u3066\u3044\u308b\u306e\u306f\u7269\u4f53A\u3068\u5730\u9762\u306e2\u3064\u3067\u3059\u304c\uff0c\u3059\u3067\u306b\u7269\u4f53A\u3068\u306e\u9593\u306e\u5782\u76f4\u6297\u529b\u306f\u304b\u304d\u8fbc\u3093\u3067\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b8b\u3063\u3066\u3044\u308b\u306e\u306f\u5730\u9762\u3068\u306e\u9593\u306e\u63a5\u89e6\u529b\u3067\u3059\u304c\uff0c\u3084\u306f\u308a\u7269\u4f53B\u304c\u5730\u9762\u306b\u3081\u308a\u8fbc\u3093\u3067\u3044\u304b\u306a\u3044\u3088\u3046\u306b\uff0c\u5730\u9762\u304c\u7269\u4f53B\u3092\u652f\u3048\u3066\u3044\u308b\u306e\u3067\uff0c\u7269\u4f53B\u306f\u5730\u9762\u304b\u3089\u4e0a\u5411\u304d\u306e\u5782\u76f4\u6297\u529b\u3092\u53d7\u3051\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3053\u308c\u304c $N_2$ \u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"103\" height=\"120\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406028.svg\" alt=\"\" class=\"wp-image-2769\"\/><noscript><img decoding=\"async\" width=\"103\" height=\"120\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406028.svg\" alt=\"\" class=\"wp-image-2769\"\/><\/noscript><\/figure>\n\n\n\n<div class=\"wp-block-st-blocks-memo clip-memobox has-icon-label post-hashiro-memo\" style=\"color:#000;background-color:#eeeeee\"><div class=\"clip-fonticon\" style=\"color:#919191;border-color:#9191914d\"><i class=\"st-fa st-svg-file-text-o st-css-no\" data-icon-label=\"memo\" aria-hidden=\"\"><\/i><\/div><div class=\"clip-memotext\" style=\"color:#000\">\n<p class=\"has-no-st-margin-bottom has-text-color\" style=\"color:#666666\">\u306a\u304a\uff0c\u3053\u306e\u53cd\u4f5c\u7528\u306f\u300c\u7269\u4f53B\u304c\u5730\u9762\u3092\u4e0b\u5411\u304d\u306b $N_2$ \u3067\u62bc\u3057\u8fd4\u3059\u529b\u300d\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u529b\u3082\u3082\u3061\u308d\u3093\u5b58\u5728\u3059\u308b\u306e\u3067\u3059\u304c\uff0c\u5730\u9762\u306f\u52d5\u304b\u306a\u3044\u306e\u3067\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u3092\u8003\u3048\u308b\u5fc5\u8981\u304c\u306a\u304f\uff0c\u305d\u306e\u305f\u3081\u529b\u306e\u4f5c\u7528\u56f3\u3082\u5fc5\u8981\u306a\u3044\u305f\u3081\u56f3\u793a\u3057\u307e\u305b\u3093\u3002<\/p>\n<\/div><\/div>\n\n\n\n<p>\u3053\u308c\u30672\u3064\u306e\u7269\u4f53\u306e\u529b\u306e\u4f5c\u7528\u56f3\u304c\u5b8c\u6210\u3057\u307e\u3057\u305f\u3002\u3044\u305a\u308c\u306e\u7269\u4f53\u3082\u9759\u6b62\u3057\u3066\u3044\u308b\u306e\u3067\uff0c\u529b\u306f\u3064\u308a\u5408\u3063\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u304b\u3089\uff0c\u3044\u3088\u3044\u3088\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u3092\u7acb\u3066\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u306f2\u3064\u306e\u65b9\u5411\u306b\u3064\u3044\u3066\u7acb\u3066\u308b\u306e\u304c\u539f\u5247\u3067\u3059\u304c\uff0c\u4eca\u56de\u306f\u6c34\u5e73\u65b9\u5411\u306e\u529b\u306f\u5b58\u5728\u3057\u306a\u3044\u305f\u3081\uff0c\u925b\u76f4\u65b9\u5411\u306e\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u306e\u307f\u3067ok\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"scroll\">$$\\stext{\u7269\u4f53A\uff1a\\ }mg=N_1,\\quad \\stext{\u7269\u4f53B\uff1a\\ }Mg+N_1=N_2$$<\/p>\n\n\n\n<p>\u3068\u3057\u3066\u7acb\u5f0f\u3067\u304d\u308b\u306e\u3067\uff0c\u3053\u308c\u3092\u89e3\u304f\u3053\u3068\u3067\uff0c<\/p>\n\n\n\n<p>$$N_1=mg,\\ N_2=(m+M)g$$\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-st-blocks-my-box st-mybox has-title post-hashiro-point\" style=\"background-color:#fff;border-color:#ff7f50\"><p class=\"st-mybox-title\" style=\"color:#ff7f50;font-weight:bold;text-shadow:#fff 3px 0px 0px, #fff 2.83487px .981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff .705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px .42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff .850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;background:linear-gradient(0deg, #fff 0%, #fff 55%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0) 100%)\"><i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"\"><\/i>\u529b\u306e\u4f5c\u7528\u56f3\u306e\u304b\u304d\u65b9<\/p><div class=\"st-in-mybox\">\n<p class=\"has-st-margin-bottom--1, has-st-margin-bottom has-st-margin-bottom--1 marukakko\"><span class=\"st-mymarker-s\">\u529b\u306e\u4f5c\u7528\u56f3\u306f\u7269\u4f53\u3054\u3068\u306b<\/span>\u304b\u304f\u3002\u554f\u984c\u6587\u306e\u56f3\u306b\u304b\u304d\u8fbc\u307e\u306a\u3044\u3002<\/p>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1 marukakko\">\u4f5c\u7528\u30fb\u53cd\u4f5c\u7528\u3092\u610f\u8b58\u3057\u3066\u529b\u306e\u304b\u304d\u5fd8\u308c\u304c\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u7269\u4f53\u3092\u307e\u3068\u3081\u3066\u8003\u3048\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\uff0c\u300c\u7269\u4f53\u3054\u3068\u306b\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u3044\u3066\uff0c\u7269\u4f53\u3054\u3068\u306b\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u3082\u3057\u304f\u306f\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u7acb\u5f0f\u3059\u308b\u300d\u3068\u3044\u3046\u306e\u304c\u5927\u539f\u5247\u3067\u3059\u304c\uff0c\u554f\u984c\u306b\u3088\u3063\u3066\u306f\u300c2\u3064\u306e\u7269\u4f53\u3092\u307e\u3068\u3081\u30661\u3064\u306e\u7269\u4f53\u3068\u3057\u3066\u8003\u3048\u3066\u3057\u307e\u3046\u300d\u3068\u3044\u3046\u65b9\u6cd5\u304c\u697d\u306a\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>2\u7269\u4f53\u3092\u307e\u3068\u3081\u30661\u3064\u306e\u7cfb\u3068\u3057\u3066\u8003\u3048\u308b\uff0c\u3068\u3044\u3046\u8868\u73fe\u3092\u3057\u307e\u3059\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p>\u5148\u307b\u3069\u306e\u4f8b\u984c\u3082\u305d\u306e\u65b9\u6cd5\u304c\u4f7f\u3048\u308b\u306e\u3067\u7d39\u4ecb\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u6700\u521d\u304b\u3089\u7269\u4f53A\u3068\u7269\u4f53B\u3092\u8cea\u91cf\u304c $m+M$ \u306e\u5927\u304d\u306a\u7269\u4f53\u3068\u3057\u3066\u307e\u3068\u3081\u3066\u8003\u3048\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u5927\u304d\u306a\u7269\u4f53\u3068\u63a5\u89e6\u3057\u3066\u3044\u308b\u306e\u306f\u5730\u9762\u3060\u3051\u306a\u306e\u3067\uff0c\u529b\u306e\u4f5c\u7528\u56f3\u306f\u56f3\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"150\" height=\"127\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406029.svg\" alt=\"\" class=\"wp-image-2770\"\/><noscript><img decoding=\"async\" width=\"150\" height=\"127\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406029.svg\" alt=\"\" class=\"wp-image-2770\"\/><\/noscript><\/figure>\n\n\n\n<p>\u529b\u306e\u3064\u308a\u5408\u3044\u304b\u3089\uff0c<br>$$N_2=(m+M)g$$\u3067\u3042\u308b\u3053\u3068\u304c\u77ac\u6642\u306b\u308f\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<div class=\"wp-block-st-blocks-st-slidebox st-slidebox-c is-collapsed has-st-toggle-icon is-st-toggle-position-left is-st-toggle-icon-position-left post-hashiro-slide\" data-st-slidebox=\"\"><p class=\"st-btn-open\" data-st-slidebox-toggle=\"\"><i data-st-slidebox-icon=\"\" data-st-slidebox-icon-collapsed=\"st-svg-angle-double-down\" data-st-slidebox-icon-expanded=\"st-svg-minus-thin\" aria-hidden=\"\" class=\"st-fa st-svg-angle-double-down\"><\/i><span class=\"st-slidebox-btn-text\" data-st-slidebox-text=\"\" data-st-slidebox-text-collapsed=\"\u3010\u767a\u5c55\u3011\u6570\u5f0f\u306e\u610f\u5473\u306b\u3064\u3044\u3066\" data-st-slidebox-text-expanded=\"\u9589\u3058\u308b\">\u3010\u767a\u5c55\u3011\u6570\u5f0f\u306e\u610f\u5473\u306b\u3064\u3044\u3066<\/span><\/p><div class=\"st-slidebox\" data-st-slidebox-content=\"\">\n<p>2\u7269\u4f53\u3092\u307e\u3068\u3081\u30661\u3064\u306e\u7cfb\u3068\u307f\u306a\u3057\u305f\u3053\u3068\u3067\uff0c<\/p>\n\n\n\n<p>$$N_2=(m+M)g$$\u3068\u3044\u3046\u5f0f\u304c\u7acb\u3066\u3089\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3067\u3082\uff0c\u300c\u308f\u30fc\u3044\uff0c\u3053\u308c\u3067\u89e3\u3051\u308b\u554f\u984c\u304c\u5897\u3048\u308b\uff01\u300d\u3068\u3044\u3046\u306e\u306f\u6b8b\u5ff5\u306a\u304c\u3089\u9593\u9055\u3044\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u5f0f\u3063\u3066\uff0c\u7269\u4f53\u3054\u3068\u306e\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u3092\u8db3\u3057\u305f\u3060\u3051\u306e\u5f0f\u3067\u3059\u3088\u306d\u3002\u3064\u307e\u308a\uff0c\u300c\u72ec\u7acb\u306a\u5f0f\u300d\u3067\u306f\u306a\u3044\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\uff0c\u7269\u4f53\u3054\u3068\u306e\u5f0f\u3092\u5168\u3066\u8db3\u3057\u3066\u5f97\u3089\u308c\u308b\u5f0f\u306f\u300c\u91cd\u5fc3\u306b\u95a2\u3059\u308b\u5f0f\u300d\u3067\u3042\u308a\uff0c\u7269\u7406\u5b66\u7684\u306b\u306f\u975e\u5e38\u306b\u91cd\u8981\u306a\u610f\u5473\u3092\u6301\u3064\u306e\u3067\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-4\">\u96e2\u308c\u308b\u30fb\u96e2\u308c\u306a\u3044\u3092\u8003\u3048\u308b\u554f\u984c<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u4ed5\u65b9<\/h3>\n\n\n\n<p>\u300c\u7269\u4f53\u304c\u5730\u9762\u304b\u3089\u96e2\u308c\u308b\u6761\u4ef6\u3092\u6c42\u3081\u3088\u300d\u3068\u3044\u3063\u305f\u3088\u3046\u306b\uff0c2\u3064\u306e\u7269\u4f53\u304c\u96e2\u308c\u308b\u6761\u4ef6\u3092\u8003\u3048\u308b\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>2\u3064\u306e\u7269\u4f53\u304c\u96e2\u308c\u308b\u3068\u3044\u3046\u3053\u3068\u306f\uff0c\u300c\u304a\u4e92\u3044\u306b\u62bc\u305b\u306a\u304f\u306a\u308b\uff08\u62bc\u3059\u5fc5\u8981\u304c\u306a\u3044\uff09\u72b6\u6cc1\u306b\u306a\u3063\u305f\u300d\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u5782\u76f4\u6297\u529b\u304c\u4e0d\u8981\u306b\u306a\u3063\u305f\uff0c\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u306d\u3002<\/p>\n\n\n\n<p>\u9006\u306b\uff0c2\u3064\u306e\u7269\u4f53\u304c\u63a5\u89e6\u3057\u3066\u3044\u308b\u3068\u304d\u306f\uff0c\u304a\u4e92\u3044\u306b\u6b63\u306e\u5782\u76f4\u6297\u529b\u3092\u53ca\u307c\u3057\u5408\u3063\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3064\u307e\u308a\uff0c2\u7269\u4f53\u304c\u63a5\u89e6\u3057\u3066\u3044\u308b\u3068\u304d\u306f\u5782\u76f4\u6297\u529b\u304c\u6b63\u306e\u5024\u3067\uff0c\u96e2\u308c\u308b\u77ac\u9593\u306b $0$ \u306b\u306a\u308b\u308f\u3051\u3067\u3059\u3002\u554f\u984c\u3092\u89e3\u304f\u969b\u306b\u306f\u3053\u308c\u3092\u5229\u7528\u3057\u3066\u4ee5\u4e0b\u306e\u901a\u308a\u306b\u89e3\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-st-blocks-my-box st-mybox has-title post-hashiro-point\" style=\"background-color:#fff;border-color:#ff7f50\"><p class=\"st-mybox-title\" style=\"color:#ff7f50;font-weight:bold;text-shadow:#fff 3px 0px 0px, #fff 2.83487px .981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff .705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px .42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff .850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;background:linear-gradient(0deg, #fff 0%, #fff 55%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0) 100%)\"><i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"\"><\/i>\u96e2\u308c\u308b\u30fb\u96e2\u308c\u306a\u3044\u554f\u984c<\/p><div class=\"st-in-mybox\">\n<ul class=\"wp-block-list is-style-st-no\">\n<li>2\u7269\u4f53\u304c\u96e2\u308c\u3066\u3044\u306a\u3044\u3068\u4eee\u5b9a\u3057\u3066\u5782\u76f4\u6297\u529b $N$ \u3092\u8a2d\u5b9a\u3057\uff0c\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u304f\u3002<\/li>\n\n\n\n<li>\u529b\u306e\u3064\u308a\u5408\u3044\u3084\u904b\u52d5\u65b9\u7a0b\u5f0f\u304b\u3089\u5177\u4f53\u7684\u306b $N$ \u3092\u6c42\u3081\u308b\u3002<\/li>\n\n\n\n<li>\u96e2\u308c\u308b\u77ac\u9593\u306b\u5782\u76f4\u6297\u529b\u306e\u5927\u304d\u3055 $N$ \u304c $0$ \u306b\u306a\u308b\u3053\u3068\u3092\u5229\u7528\u3057\u3066\u554f\u984c\u3092\u89e3\u304f\u3002<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-st-blocks-memo clip-memobox has-icon-label post-hashiro-tyuu\" style=\"color:#808080;background-color:#f5f5f5\"><div class=\"clip-fonticon\" style=\"color:#919191;border-color:#9191914d\"><i class=\"st-fa st-svg-exclamation-circle st-css-no\" data-icon-label=\"\u6ce8\" aria-hidden=\"\"><\/i><\/div><div class=\"clip-memotext\" style=\"color:#808080\">\n<p class=\"has-st-icon has-st-icon-exclamation-circle\">\u96e2\u308c\u308b\u305f\u3081\u306e\u6761\u4ef6\u3092\u6c42\u3081\u3088\uff0c\u3068\u554f\u308f\u308c\u305f\u969b\u306b\u306f\uff0c\u300c$N&lt;0$\u300d\u3068\u3044\u3046\u6761\u4ef6\u5f0f\u3067\u8003\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon3 clearfix\"><div class=\"st-kaiwa-area2\"><div class=\"st-kaiwa-hukidashi2\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u307e\u305a\u306f\u300c\u96e2\u308c\u306a\u3044\u300d\u3068\u8003\u3048\u3066\uff0c\u5782\u76f4\u6297\u529b\u3092\u6c42\u3081\u308c\u3070\u3088\u3044\u306e\u3067\u3059\u306d\uff01<\/p>\n<\/div><\/div><\/div><div class=\"st-kaiwa-face2\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u6319\u624b\uff09.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u6319\u624b\uff09.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name2\">\u751f\u5f92<\/div><\/div><\/div>\n\n\n\n<p>\u3053\u3046\u3057\u305f\u96e2\u308c\u308b\u30fb\u96e2\u308c\u306a\u3044\u306b\u3064\u3044\u3066\u8003\u3048\u308b\u554f\u984c\u306f\u5186\u904b\u52d5\u306e\u5206\u91ce\u3067\u51fa\u984c\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u305f\u3081\uff0c\u7269\u7406\u57fa\u790e\u306e\u7bc4\u56f2\u3067\u306f\u3042\u307e\u308a\u898b\u304b\u3051\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\uff0c\u51fa\u984c\u3055\u308c\u3066\u3082\u304a\u304b\u3057\u304f\u306a\u3044\u5185\u5bb9\u3067\u3059\u306e\u3067\uff0c\u3057\u3063\u304b\u308a\u3068\u8003\u3048\u65b9\u306f\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-5\">\u5f35\u529b<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5f35\u529b\u3068\u306f<\/h3>\n\n\n\n<p>\u3074\u3093\u3068\u5f35\u3063\u305f\u7cf8\u304c\u7269\u4f53\u3092\u5f15\u3063\u5f35\u308b\u529b\u306e\u3053\u3068\u3092<span class=\"st-mymarker-s\">\u5f35\u529b<\/span>\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5411\u304d\u306f\u7cf8\u306e\u5411\u304d\u3068\u540c\u3058\u306a\u306e\u3067\u60a9\u3080\u3053\u3068\u306f\u306a\u3044\u306e\u3067\u3059\u304c\uff0c\u5782\u76f4\u6297\u529b\u3068\u540c\u3058\u3067\u554f\u984c\u3092\u89e3\u3044\u3066\u307f\u306a\u3044\u3068<span class=\"st-mymarker-s\">\u5927\u304d\u3055\u306f\u308f\u304b\u308a\u307e\u305b\u3093<\/span>\u3002<\/p>\n\n\n\n<p>\u672a\u77e5\u6570\u3068\u3057\u3066\u6271\u3046\u305f\u3081\uff0c\u307e\u305a\u306f $T$ \u306a\u3069\u306e\u6587\u5b57\u3067\u81ea\u5206\u3067\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u3084\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u89e3\u304f\u3053\u3068\u3067\u306f\u3058\u3081\u3066\u6c42\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"88\" height=\"127\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406030.svg\" alt=\"\" class=\"wp-image-2771\"\/><noscript><img decoding=\"async\" width=\"88\" height=\"127\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406030.svg\" alt=\"\" class=\"wp-image-2771\"\/><\/noscript><\/figure>\n\n\n\n<p>\u5782\u76f4\u6297\u529b\u3068\u540c\u3058\u3067\u4f5c\u7528\u3068\u53cd\u4f5c\u7528\u306b\u3082\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"wp-block-st-blocks-midashi-box freebox has-title post-hashiro-reidai\" style=\"background-color:#f7f7fb;border-width:3px;border-color:#a3bded\"><p class=\"p-free\" style=\"border-color:#a3bded;font-weight:bold\"><span class=\"p-entry-f\" style=\"color:#ffffff;font-weight:bold;background-color:#a3bded\"><i class=\"st-fa st-svg-pencil st-css-no\" aria-hidden=\"\"><\/i>\u4f8b\u984c<\/span><\/p><div class=\"free-inbox\">\n<p>\u56f3\u306e\u3088\u3046\u306b\uff0c\u8cea\u91cf\u304c $m$ \u306e\u7269\u4f53A\u3068\u8cea\u91cf\u304c $M$ \u306e\u7269\u4f53B\u304c\u7cf8\u306b\u3064\u306a\u304c\u308c\u3066\u3044\u308b\u3002\u7cf8P\u304c\u7269\u4f53A\u306b\u53ca\u307c\u3059\u5f35\u529b\u306e\u5927\u304d\u3055 $T_1$ \u3068\uff0c\u7cf8Q\u304c\u7269\u4f53B\u306b\u53ca\u307c\u3059\u5f35\u529b\u306e\u5927\u304d\u3055 $T_2$ \u3092\u6c42\u3081\u3088\u3002\u305f\u3060\u3057\uff0c\u91cd\u529b\u52a0\u901f\u5ea6\u306e\u5927\u304d\u3055\u3092 $g$ \u3068\u3059\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"101\" height=\"125\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406031.svg\" alt=\"\" class=\"wp-image-2772\"\/><noscript><img decoding=\"async\" width=\"101\" height=\"125\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406031.svg\" alt=\"\" class=\"wp-image-2772\"\/><\/noscript><\/figure>\n<\/div><\/div>\n\n\n\n<p>\u3055\u3066\uff0c\u307e\u305f\u7269\u4f53\u3054\u3068\u306b\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u304f\u3053\u3068\u304b\u3089\u306f\u3058\u3081\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002\u4eca\u56de\u306f\uff0c\u7269\u4f53A\uff0c\u7269\u4f53B\u3068\u7cf8Q\u306e\u529b\u306e\u4f5c\u7528\u56f3\u3092\u304b\u3044\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305a\u306f\u5834\u306e\u529b\u3067\u3042\u308b\u91cd\u529b\u3092\u304b\u304d\u8fbc\u3093\u3067\u3044\u304d\u307e\u3059\u3002\u3053\u306e\u3068\u304d\uff0c\u7cf8\u306e\u8cea\u91cf\u306f $0$ \u306a\u306e\u3067\uff0c\u91cd\u529b\u306f\u50cd\u304b\u306a\u3044\u3082\u306e\u3068\u3057\u3066\u8003\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u3053\u308c\u306f\u6697\u9ed9\u306e\u30eb\u30fc\u30eb\u3067\u3059\u306e\u3067\uff0c\u305d\u3046\u3044\u3046\u3082\u306e\u3060\u3068\u601d\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p>\u56f3<\/p>\n\n\n\n<h3 class=\"wp-block-heading is-style-st-heading-custom-count post-hashiro-countA st-heading-count-reset\">\u7269\u4f53B\u306b\u3064\u3044\u3066<\/h3>\n\n\n\n<p>\u7269\u4f53B\u306b\u6ce8\u76ee\u3057\u307e\u3057\u3087\u3046\u3002\u7269\u4f53B\u306f\u7cf8Q\u3068\u3064\u306a\u304c\u308c\u3066\u3044\u307e\u3059\u306e\u3067\uff0c\u7cf8Q\u304b\u3089\u5f35\u529b\u3092\u53d7\u3051\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u5927\u304d\u3055\u304c $T_2$ \u3067\u3059\u306e\u3067\uff0c\u3053\u308c\u3082\u529b\u306e\u4f5c\u7528\u56f3\u306b\u304b\u304d\u8fbc\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u7d50\u5c40\uff0c\u7269\u4f53B\u306f\u7cf8Q\u306b\u5f15\u3063\u5f35\u3063\u3066\u3082\u3089\u3063\u3066\u3044\u308b\u304b\u3089\u843d\u4e0b\u3057\u306a\u3044\u3067\u305d\u306e\u5834\u306b\u7559\u307e\u3063\u3066\u3044\u308b\uff0c\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"96\" height=\"117\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406032.svg\" alt=\"\" class=\"wp-image-2773\"\/><noscript><img decoding=\"async\" width=\"96\" height=\"117\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406032.svg\" alt=\"\" class=\"wp-image-2773\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3053\u306e\u53cd\u4f5c\u7528\u3092\u7cf8Q\u304c\u53d7\u3051\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u7269\u4f53B\u3092\u7cf8Q\u304c\u5f15\u3063\u5f35\u308b\u529b\u304c\u4e0a\u5411\u304d\u306b $T_2$ \u3060\u3063\u305f\u308f\u3051\u3067\u3059\u304b\u3089\uff0c\u7cf8Q\u304c\u7269\u4f53B\u306b\u5f15\u3063\u5f35\u308a\u8fd4\u3055\u308c\u308b\u529b\uff08\u53cd\u4f5c\u7528\uff09\u306f\u4e0b\u5411\u304d\u306b $T_2$ \u306b\u306a\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon2 clearfix\"><div class=\"st-kaiwa-area2\"><div class=\"st-kaiwa-hukidashi2\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u3067\u306f\uff0c\u7cf8Q\u304c\u7269\u4f53A\u3092\u5f15\u3063\u5f35\u308b\u5f35\u529b\u306f\u2026\uff1f<\/p>\n<\/div><\/div><\/div><div class=\"st-kaiwa-face2\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u7591\u554f\uff09.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u7591\u554f\uff09.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name2\">\u751f\u5f92<\/div><\/div><\/div>\n\n\n\n<p>\u3053\u308c\u306f\u5c11\u3057\u8a71\u304c\u3084\u3084\u3053\u3057\u3044\u306e\u3067\u3059\u304c\uff0c\u7cf8Q\u306f\u8efd\u3044\u7cf8\u3067\u8cea\u91cf\u304c\u7121\u8996\u3067\u304d\u308b\u3053\u3068\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u8cea\u91cf\u304c $0$ \u306e\u5834\u5408\uff0c\u904b\u52d5\u65b9\u7a0b\u5f0f\u306f\uff0c<br>$$0\\cdot a=f$$\u3068\u306a\u308a\uff0c\u52a0\u901f\u5ea6\u304c\u3044\u304f\u3064\u3067\u3042\u3063\u3066\u3082\u5fc5\u305a $f=0$ \u304c\u6210\u7acb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>$f$ \u306f\u5408\u529b\u3092\u610f\u5473\u3059\u308b\u306e\u3067\uff0c$f=0$ \u306f\u529b\u306e\u3064\u308a\u5408\u3044\u304c\u6210\u308a\u7acb\u3064\u3053\u3068\u3092\u610f\u5473\u3057\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p>\u5c11\u3057\u9055\u548c\u611f\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\uff0c<span class=\"st-mymarker-s\">\u8cea\u91cf\u304c $0$ \u306e\u7269\u4f53\u3067\u306f\uff0c\u5e38\u306b\u529b\u306e\u3064\u308a\u5408\u3044\u304c\u6210\u308a\u7acb\u3064<\/span>\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u3059\u308b\u3068\u4eca\u56de\u306e\u5834\u5408\uff0c\u7cf8Q\u306b\u50cd\u304f\u529b\u306f\u5148\u307b\u3069\u6c42\u3081\u305f\u300c\u7269\u4f53B\u306b\u5f15\u3063\u5f35\u308a\u8fd4\u3055\u308c\u308b\u529b\uff1a\u4e0b\u5411\u304d\u306b $T_2$\u300d\u3068\uff0c\u300c\u7269\u4f53A\u306b\u5f15\u3063\u5f35\u308a\u8fd4\u3055\u308c\u308b\u529b\u300d\u306e\u307f\u3067\u3059\u304b\u3089\uff0c\u529b\u306e\u3064\u308a\u5408\u3044\u3092\u8e0f\u307e\u3048\u308b\u3068\u5f8c\u8005\u306e\u529b\u304c\u300c\u4e0a\u5411\u304d\u306b $T_2$\u300d\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"68\" height=\"129\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406033.svg\" alt=\"\" class=\"wp-image-2774\"\/><noscript><img decoding=\"async\" width=\"68\" height=\"129\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406033.svg\" alt=\"\" class=\"wp-image-2774\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\uff0c\u8cea\u91cf\u304c $0$ \u306e\u7cf8\u306b\u3064\u3044\u3066\u306f\u91cd\u8981\u306a\u4ee5\u4e0b\u306e\u6027\u8cea\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-st-blocks-my-box st-mybox has-title post-hashiro-point\" style=\"background-color:#fff;border-color:#ff7f50\"><p class=\"st-mybox-title\" style=\"color:#ff7f50;font-weight:bold;text-shadow:#fff 3px 0px 0px, #fff 2.83487px .981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff .705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px .42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff .850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;background:linear-gradient(0deg, #fff 0%, #fff 55%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0) 100%)\"><i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"\"><\/i>\u8efd\u3044\u7cf8\u306e\u5f35\u529b<\/p><div class=\"st-in-mybox\">\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u8cea\u91cf\u304c\u7121\u8996\u3067\u304d\u308b\u8efd\u3044\u7cf8\u304c\u4e21\u7aef\u306e\u7269\u4f53\u306b\u53ca\u307c\u3059\u5f35\u529b\u306e\u5927\u304d\u3055\u306f\u7b49\u3057\u3044\u3002<\/p>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading is-style-st-heading-custom-count post-hashiro-countA\">\u7269\u4f53A\u306b\u3064\u3044\u3066<\/h3>\n\n\n\n<p>\u6700\u5f8c\u306b\u7269\u4f53A\u306b\u3064\u3044\u3066\u8003\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u4e0a\u3067\u8ff0\u3079\u305f\u901a\u308a\uff0c\u7269\u4f53A\u3092\u7cf8Q\u304c\u4e0b\u5411\u304d\u306b\u5f15\u3063\u5f35\u308b\u5f35\u529b\u306f\u5927\u304d\u3055\u304c $T_2$ \u3067\u3059\u304b\u3089\uff0c\u529b\u306e\u4f5c\u7528\u56f3\u306f\u305a\u306e\u901a\u308a\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3061\u306a\u307f\u306b\uff0c\u7cf8P\u306b\u3064\u3044\u3066\u3082\u5148\u307b\u3069\u3068\u540c\u3058\u3053\u3068\u304c\u3044\u3048\u308b\u306e\u3067\uff0c\u5929\u4e95\u3092\u4e0b\u5411\u304d\u306b $T_1$ \u3067\u5f15\u3063\u5f35\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"99\" height=\"132\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406034.svg\" alt=\"\" class=\"wp-image-2775\"\/><noscript><img decoding=\"async\" width=\"99\" height=\"132\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406034.svg\" alt=\"\" class=\"wp-image-2775\"\/><\/noscript><\/figure>\n\n\n\n<p>\u4ee5\u4e0a\u3067\u529b\u306e\u4f5c\u7528\u56f3\u304c\u5b8c\u6210\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u7269\u4f53A\uff0cB\u306b\u3064\u3044\u3066\u305d\u308c\u305e\u308c\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u306f\uff0c<\/p>\n\n\n\n<p class=\"scroll\">$$\\stext{\u7269\u4f53A\uff1a\\ }mg+T_2=T_1,\\quad \\stext{\u7269\u4f53B\uff1a\\ }Mg=T_2$$<\/p>\n\n\n\n<p>\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3088\u308a\uff0c<\/p>\n\n\n\n<p>$$T_1=(m+M)g,\\ T_2=Mg$$\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u4eca\u56de\u306f\u6700\u521d\u306a\u306e\u3067\uff0c\u7cf8Q\u306b\u3064\u3044\u3066\u4e01\u5be7\u306b\u8003\u3048\u307e\u3057\u305f\u304c\uff0c\u5b9f\u969b\u306b\u554f\u984c\u3092\u89e3\u304f\u969b\u306b\u306f\u300c\u8efd\u3044\u7cf8\u304c\u4e21\u7aef\u306e\u7269\u4f53\u306b\u53ca\u307c\u3059\u5f35\u529b\u306e\u5927\u304d\u3055\u304c\u7b49\u3057\u3044\u300d\u3053\u3068\u3092\u982d\u306e\u4e2d\u3067\u5229\u7528\u3057\u3066\uff0c\u7269\u4f53A\uff0cB\u306e\u529b\u306e\u4f5c\u7528\u56f3\u306e\u307f\u3092\u304b\u3051\u3070ok\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon3 clearfix\"><div class=\"st-kaiwa-area2\"><div class=\"st-kaiwa-hukidashi2\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u5f35\u529b\u306e\u5411\u304d\u304c\u7cf8\u306e\u5f35\u308b\u65b9\u5411\u3068\u540c\u3058\u3067\u3042\u308b\u3053\u3068\u3092\u8e0f\u307e\u3048\u308b\u3068\uff0c\u529b\u306e\u4f5c\u7528\u56f3\u306f\u30b9\u30e0\u30fc\u30ba\u306b\u304b\u3051\u307e\u3059\u306d\uff01<\/p>\n<\/div><\/div><\/div><div class=\"st-kaiwa-face2\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u6319\u624b\uff09.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u6319\u624b\uff09.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name2\">\u751f\u5f92<\/div><\/div><\/div>\n\n\n\n<p>\u5148\u307b\u3069\u306e\u5782\u76f4\u6297\u529b\u306e\u4f8b\u984c\u3068\u540c\u69d8\uff0c2\u3064\u306e\u7269\u4f53\u3092\u307e\u3068\u3081\u30661\u3064\u306e\u5927\u304d\u306a\u7269\u4f53\u3068\u3057\u3066\u8003\u3048\u308b\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u306e\u3067\u78ba\u8a8d\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1\u3064\u306e\u7cfb\u3068\u3057\u3066\u8003\u3048\u308b<\/h3>\n\n\n\n<p>\u7269\u4f53A\uff0cB\u3092\u307e\u3068\u3081\u3066\u8cea\u91cf\u304c $m+M$ \u306e1\u3064\u306e\u7269\u4f53\u3067\u3042\u308b\u3068\u8003\u3048\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3068\u304d\u306e\u529b\u306e\u4f5c\u7528\u56f3\u306f\u56f3\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"99\" height=\"145\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406035.svg\" alt=\"\" class=\"wp-image-2776\"\/><noscript><img decoding=\"async\" width=\"99\" height=\"145\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406035.svg\" alt=\"\" class=\"wp-image-2776\"\/><\/noscript><\/figure>\n\n\n\n<p>\u529b\u306e\u3064\u308a\u5408\u3044\u3088\u308a\uff0c<\/p>\n\n\n\n<p>$$T_1=(m+M)g$$\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-6\">\u7cf8\u304c\u305f\u308b\u3080\u30fb\u305f\u308b\u307e\u306a\u3044\u3092\u8003\u3048\u308b\u554f\u984c<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u4ed5\u65b9<\/h3>\n\n\n\n<p>\u5148\u307b\u3069\u5782\u76f4\u6297\u529b\u3067\u8003\u3048\u305f\uff0c2\u3064\u306e\u7269\u4f53\u304c\u96e2\u308c\u308b\u30fb\u96e2\u308c\u306a\u3044\u3092\u8003\u3048\u308b\u306e\u3068\u540c\u69d8\u306b\uff0c\u5f35\u529b\u306b\u3064\u3044\u3066\u3082\u7cf8\u304c\u305f\u308b\u3080\u30fb\u305f\u308b\u307e\u306a\u3044\u6761\u4ef6\u3092\u8003\u3048\u308b\u554f\u984c\u304c\u51fa\u984c\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u8003\u3048\u65b9\u306f\u540c\u69d8\u3067\uff0c\u7cf8\u304c\u30d4\u30f3\u3068\u5f35\u3063\u3066\u3044\u308b\u9593\u306f\u7269\u4f53\u3092\u5f15\u3063\u5f35\u308b\u306e\u3067 $T&gt;0$ \u3067\u3042\u308a\uff0c\u305f\u308b\u3080\u77ac\u9593\u306b $T=0$ \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u7cf8\u304c\u305f\u308b\u3093\u3067\u3044\u308b\u3068\u304d\u306f\u6570\u5f0f\u4e0a\uff0c$T&lt;0$ 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