{"id":1753,"date":"2022-09-08T00:43:28","date_gmt":"2022-09-07T15:43:28","guid":{"rendered":"https:\/\/torisetudy.com\/?page_id=1753"},"modified":"2025-04-04T17:24:28","modified_gmt":"2025-04-04T08:24:28","slug":"%e8%87%aa%e7%94%b1%e8%90%bd%e4%b8%8b%e9%81%8b%e5%8b%95%e3%83%bb%e9%89%9b%e7%9b%b4%e6%8a%95%e3%81%92%e4%b8%8a%e3%81%92%e9%81%8b%e5%8b%95","status":"publish","type":"post","link":"https:\/\/torisetudy.com\/?p=1753","title":{"rendered":"\u81ea\u7531\u843d\u4e0b\u904b\u52d5\u30fb\u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5"},"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> \u91cd\u529b\u52a0\u901f\u5ea6<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_1\">2<\/span> \u81ea\u7531\u843d\u4e0b\u904b\u52d5<\/a><\/li><li><a href=\"#i-3\"><span class=\"toc_number toc_depth_1\">3<\/span> \u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5<\/a><\/li><\/ul><\/div>\n<h2 class=\"wp-block-heading\"><span id=\"i\">\u91cd\u529b\u52a0\u901f\u5ea6<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u91cd\u529b\u52a0\u901f\u5ea6\u3068\u306f<\/h3>\n\n\n\n<p>\u5f53\u305f\u308a\u524d\u306e\u3053\u3068\u3067\u3059\u304c\uff0c\u7a7a\u4e2d\u3067\u7269\u304b\u3089\u624b\u3092\u96e2\u3059\u3068\u5730\u9762\u306b\u5411\u304b\u3063\u3066\u843d\u4e0b\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u306e\u904b\u52d5\u306e\u3053\u3068\u3092<span class=\"st-mymarker-s\">\u81ea\u7531\u843d\u4e0b\u904b\u52d5<\/span>\u3068\u3044\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u843d\u4e0b\u904b\u52d5\u304c\u5b9f\u306f\u7b49\u52a0\u901f\u5ea6\u904b\u52d5\u306b\u306a\u308b\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u304a\u308a\uff0c\u305d\u306e\u52a0\u901f\u5ea6\u306e\u5927\u304d\u3055\u306f <span class=\"st-mymarker-s\">$g\\fallingdotseq 9.8\\mss$<\/span> \u3067\u3059\u3002\u5411\u304d\u306f\u5730\u9762\u306b\u5411\u304b\u3046\uff0c\u925b\u76f4\u4e0b\u5411\u304d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"133\" height=\"124\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406008.svg\" alt=\"\" class=\"wp-image-1947\"\/><noscript><img decoding=\"async\" width=\"133\" height=\"124\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406008.svg\" alt=\"\" class=\"wp-image-1947\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3053\u306e\u52a0\u901f\u5ea6\u306e\u3053\u3068\u3092\uff0c<span class=\"st-mymarker-s\">\u91cd\u529b\u52a0\u901f\u5ea6<\/span>\u3068\u547c\u3073\u307e\u3059\u304c\uff0c\u3053\u308c\u306f\u7269\u4f53\u304c\u5730\u7403\u304b\u3089\u4e07\u6709\u5f15\u529b\uff08\u91cd\u529b\uff09\u3092\u53d7\u3051\u3066\u3044\u308b\u305f\u3081\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u8a73\u7d30\u306f\u91cd\u529b\u306b\u3064\u3044\u3066\u5b66\u7fd2\u3059\u308b\u969b\u306b\u8aac\u660e\u3057\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\u52a0\u901f\u5ea6<\/p><div class=\"st-in-mybox\">\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u5730\u8868\u4ed8\u8fd1\uff08\u91cd\u529b\u5834\uff09\u306e\u7a7a\u4e2d\u3067\u904b\u52d5\u3059\u308b\u7269\u4f53\u306e\u52a0\u901f\u5ea6\u306f\uff0c\u925b\u76f4\u4e0b\u5411\u304d\u306b $g$ \u3068\u306a\u308b\u3002\u3053\u308c\u3092\u91cd\u529b\u52a0\u901f\u5ea6\u3068\u547c\u3076\u3002<\/p>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u73fe\u5b9f\u4e16\u754c\u306e\u30a4\u30e1\u30fc\u30b8\u3068\u306e\u4e56\u96e2<\/h3>\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\u3082\u52a0\u901f\u5ea6\u3063\u3066\uff0c\u843d\u3068\u3059\u7269\u4f53\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u9055\u3046\u3093\u3058\u3083\u306a\u3044\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>\u73fe\u5b9f\u4e16\u754c\u3067\u7fbd\u3092\u843d\u3068\u3059\u5834\u5408\u3068\uff0c\u30b4\u30eb\u30d5\u30dc\u30fc\u30eb\u3092\u843d\u3068\u3059\u5834\u5408\u3068\u3067\u306f\u843d\u4e0b\u306e\u901f\u5ea6\u306f\u7570\u306a\u308a\u307e\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<p><span class=\"st-mymarker-s-b\">\u5b9f\u969b\u306e\u4e16\u754c\u3067\u306f\u7a7a\u6c17\u62b5\u6297\u304c\u5b58\u5728\u3059\u308b<\/span>\u306e\u3067\uff0c\u8efd\u304f\u3066\u5e73\u3089\u306a\u7269\u4f53\u307b\u3069\u3086\u3063\u304f\u308a\u843d\u4e0b\u3057\u307e\u3059\u304c\uff0c\u7269\u7406\u306e\u554f\u984c\u3067\u306f\u7a7a\u6c17\u62b5\u6297\u3092\u7121\u8996\u3059\u308b\u3053\u3068\u304c\u5927\u534a\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>\u554f\u984c\u6587\u3067\u89e6\u308c\u3089\u308c\u3066\u3044\u306a\u3051\u308c\u3070\u57fa\u672c\u7684\u306b\u7a7a\u6c17\u62b5\u6297\u306f\u7121\u8996\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p><span class=\"st-mymarker-s-b\">\u7a7a\u6c17\u62b5\u6297\u3092\u7121\u8996\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308c\u3070\uff0c\u3069\u306e\u7269\u4f53\u3082\u540c\u3058\u52a0\u901f\u5ea6\uff0c\u540c\u3058\u901f\u5ea6\u3067\u81ea\u7531\u843d\u4e0b\u3059\u308b<\/span>\u3053\u3068\u304c\u77e5\u3089\u308c\u3066\u3044\u308b\u306e\u3067\uff0c\u554f\u984c\u3092\u89e3\u304f\u969b\u306b\u306f\u7269\u4f53\u306e\u7a2e\u985e\u306b\u3088\u3089\u305a\u52a0\u901f\u5ea6\u306f\u4e00\u5b9a\u3067\u925b\u76f4\u4e0b\u5411\u304d\u306b $g$ \u3067\u3042\u308b\u3082\u306e\u3068\u3057\u3066\u8003\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-2\">\u81ea\u7531\u843d\u4e0b\u904b\u52d5<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u7c21\u5358\u306a\u4f8b<\/h3>\n\n\n\n<p>\u5730\u8868\u306e\u7a7a\u9593\u3067\u904b\u52d5\u3059\u308b\u7269\u4f53\u306e\u52a0\u901f\u5ea6\u306f\uff0c\u925b\u76f4\u4e0b\u5411\u304d\u306b $g$ \u3067\u3042\u308b\u3053\u3068\u3092\u5b66\u7fd2\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3053\u3068\u3092\u8e0f\u307e\u3048\u3066\uff0c\u81ea\u7531\u843d\u4e0b\u904b\u52d5\u306b\u3064\u3044\u3066\u8003\u3048\u3066\u307f\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>\u9ad8\u3055 $h$ \u306e\u5834\u6240\u304b\u3089\u521d\u901f\u5ea6 $0$ \u3067\u7269\u4f53\u3092\u81ea\u7531\u843d\u4e0b\u3055\u305b\u305f\u3002\u4ee5\u4e0b\u306e\u554f\u3044\u306b\u7b54\u3048\u3088\u3002\u305f\u3060\u3057\uff0c\u91cd\u529b\u52a0\u901f\u5ea6\u3092\u925b\u76f4\u4e0b\u5411\u304d\u306b $g$ \u3068\u3059\u308b\u3002<\/p>\n\n\n\n<p class=\"setumonnkakko\">\u7269\u4f53\u304c\u5730\u9762\u306b\u5230\u9054\u3059\u308b\u307e\u3067\u306b\u304b\u304b\u308b\u6642\u9593 $t_1$ \u3092\u6c42\u3081\u3088\u3002<\/p>\n\n\n\n<p class=\"setumonnkakko\">\u7269\u4f53\u304c\u5730\u9762\u306b\u5230\u9054\u3059\u308b\u76f4\u524d\u306e\u901f\u3055 $v_1$ \u3092\u6c42\u3081\u3088\u3002<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group post-hashiro-reidaikaitou\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group gsetumonnkakko\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>\u6642\u523b $t=0$ \u306b\u304a\u3051\u308b\u7269\u4f53\u306e\u4f4d\u7f6e\u3092\u539f\u70b9\u3068\u3057\uff0c\u925b\u76f4\u4e0b\u5411\u304d\u306b $x$ \u8ef8\u3092\u3068\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"101\" height=\"170\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406009.svg\" alt=\"\" class=\"wp-image-2041\"\/><noscript><img decoding=\"async\" width=\"101\" height=\"170\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406009.svg\" alt=\"\" class=\"wp-image-2041\"\/><\/noscript><\/figure>\n\n\n\n<p>\u81ea\u7531\u843d\u4e0b\u3059\u308b\u7269\u4f53\u306e\u52a0\u901f\u5ea6\u306f $g$ \u306a\u306e\u3067\uff0c\u6642\u523b $t$ \u306b\u304a\u3051\u308b\u7269\u4f53\u306e\u901f\u5ea6 $v$ \u304a\u3088\u3073\u4f4d\u7f6e $x$ \u306f\uff0c\u305d\u308c\u305e\u308c\uff0c<\/p>\n\n\n\n<p>$$v=gt,\\ x=\\bun12gt^{\\mskip 2mu 2}$$<\/p>\n\n\n\n<p>\u3068\u8868\u305b\u308b\u3002<\/p>\n\n\n\n<p>\u7269\u4f53\u304c\u5730\u9762\u306b\u5230\u9054\u3059\u308b\u969b\u306b\u306f $x=h$ \u304c\u6210\u7acb\u3059\u308b\u306e\u3067\uff0c<\/p>\n\n\n\n<p>$$h=\\bun12gt_1\\!^2\\qquad \\therefore\\quad t_1=\\sqrt{\\bun{2h}{g}}$$<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group gsetumonnkakko\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>\u6642\u523b $t_1$ \u306b\u304a\u3051\u308b\u7269\u4f53\u306e\u901f\u5ea6\u3092\u8003\u3048\u308c\u3070\u3088\u3044\u306e\u3067\uff0c<\/p>\n\n\n\n<p>$$v_1=gt_1\\qquad \\therefore\\quad v_1=\\sqrt{2gh}$$<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5ea7\u6a19\u8ef8\u306e\u8a2d\u5b9a<\/h3>\n\n\n\n<p>\u3053\u306e\u4f8b\u984c\u306e\u3088\u3046\u306b\uff0c\u554f\u984c\u3092\u89e3\u304f\u969b\u306b\u306f\u5ea7\u6a19\u306e\u5411\u304d\uff0c\u539f\u70b9\u3092\u81ea\u5206\u3067\u8a2d\u5b9a\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><span class=\"st-mymarker-s\">\u7269\u4f53\u306e\u521d\u671f\u4f4d\u7f6e\u3092\u539f\u70b9\u306b\uff0c\u521d\u901f\u5ea6\u3068\u540c\u3058\u5411\u304d\uff08\u3082\u3057\u304f\u306f\u52a0\u901f\u5ea6\u3068\u540c\u3058\u5411\u304d\uff09\u306b\u8ef8\u306e<\/span><span class=\"st-mymarker-s\">\u6b63\u306e\u5411\u304d<\/span><span class=\"st-mymarker-s\">\u3092\u5b9a\u3081\u308b\u3068\u3046\u307e\u304f\u3044\u304f\u3053\u3068\u304c\u591a\u3044<\/span>\u3067\u3059\u304c\uff0c\u4f8b\u5916\u3082\u3042\u308b\u306e\u3067\u3053\u306e\u3042\u305f\u308a\u306f\u554f\u984c\u6f14\u7fd2\u3092\u901a\u3058\u3066\u6163\u308c\u3066\u3044\u304d\u307e\u3057\u3087\u3046\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>\u30dd\u30a4\u30f3\u30c8<\/p><div class=\"st-in-mybox\">\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u5ea7\u6a19\u8ef8\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u304d\u306b\u306f\u81ea\u5206\u3067\u8a2d\u5b9a\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u7269\u4f53\u306e\u521d\u671f\u4f4d\u7f6e\u3092\u539f\u70b9\u306b\uff0c\u521d\u901f\u5ea6\u3068\u540c\u3058\u5411\u304d\uff08\u3082\u3057\u304f\u306f\u52a0\u901f\u5ea6\u3068\u540c\u3058\u5411\u304d\uff09\u306b\u8ef8\u306e\u6b63\u306e\u5411\u304d\u3092\u5b9a\u3081\u308b\u3068\u3046\u307e\u304f\u3044\u304f\u3053\u3068\u304c\u591a\u3044\u3002<\/p>\n<\/div><\/div>\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>\u8ef8\u306e\u8a2d\u5b9a\u306e\u4ed5\u65b9\u3092\u5931\u6557\u3059\u308b\u3068\uff0c\u5f0f\u304c\u8907\u96d1\u306b\u306a\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u3082\u2026\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p>\u8ef8\u304c\u6b63\u3057\u304f\u8a2d\u5b9a\u3067\u304d\u3066\u3057\u307e\u3048\u3070\uff0c\u3042\u3068\u306f\u7b49\u52a0\u901f\u5ea6\u904b\u52d5\u306e\u516c\u5f0f\u306b\u4ee3\u5165\u3057\u3066\u3044\u304f\u3060\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306f\uff0c$t=0$ \u3067\u539f\u70b9\u304b\u3089\u904b\u52d5\u304c\u59cb\u307e\u308a $(x_0=0\\,)$\uff0c\u81ea\u7531\u843d\u4e0b\u3067 $(v_0=0\\,)$\uff0c\u52a0\u901f\u5ea6\u304c $g$ \u3067\u3042\u308b $(a=g\\,)$ \u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\uff0c<\/p>\n\n\n\n<p>$$v=0+gt,\\quad x=0+0\\cdot t+\\Bun12gt^{\\mskip 2mu 2}$$\u3068\u7acb\u5f0f\u3059\u308c\u3070ok\u3067\u3059\u3002\u3053\u308c\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u304b\u3044\u305f\u3082\u306e\u304c\u4e0a\u306e\u4f8b\u984c\u306e\u89e3\u7b54\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-3\">\u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5<\/span><\/h2>\n\n\n\n<p>\u6b21\u306f\u7269\u4f53\u3092\u771f\u4e0a\u306b\u5411\u304b\u3063\u3066\u6295\u3052\u4e0a\u3052\u305f\u5834\u5408\u306e\u904b\u52d5\uff08\u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5\uff09\u306b\u3064\u3044\u3066\u8003\u3048\u3066\u307f\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>\u6642\u523b $t=0$ \u306b\uff0c\u5730\u9762\u304b\u3089\u771f\u4e0a\u306b\u5411\u304b\u3063\u3066\u7269\u4f53\u3092\u521d\u901f\u5ea6 $v_0$ \u3067\u6295\u3052\u4e0a\u3052\u308b\u904b\u52d5\u306b\u3064\u3044\u3066\uff0c\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\u4f53\u304c\u6700\u9ad8\u70b9\u306b\u9054\u3059\u308b\u6642\u523b $t_1$ \u3092\u6c42\u3081\u3088\u3002<\/p>\n\n\n\n<p class=\"setumonnkakko\">\u7269\u4f53\u304c\u9054\u3059\u308b\u6700\u9ad8\u70b9\u306e\u9ad8\u3055 $h$ \u3092\u6c42\u3081\u3088\u3002<\/p>\n\n\n\n<p class=\"setumonnkakko\">\u7269\u4f53\u304c\u5730\u9762\u306b\u9054\u3059\u308b\u6642\u523b $t_2$ \u3092\u6c42\u3081\u3088\u3002<\/p>\n\n\n\n<p class=\"setumonnkakko\">\u7269\u4f53\u304c\u5730\u9762\u306b\u9054\u3059\u308b\u76f4\u524d\u306e\u901f\u3055 $V$ \u3092\u6c42\u3081\u3088\u3002<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group post-hashiro-reidaikaitou\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group gsetumonnkakko\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>\u5730\u9762\u3092\u539f\u70b9\u3068\u3057\uff0c\u925b\u76f4\u4e0a\u5411\u304d\u306b $x$ \u8ef8\u3092\u5b9a\u3081\u308b\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"104\" height=\"142\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406010.svg\" alt=\"\u7269\u7406010\" class=\"wp-image-2042\"\/><noscript><img decoding=\"async\" width=\"104\" height=\"142\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406010.svg\" alt=\"\u7269\u7406010\" class=\"wp-image-2042\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3053\u306e\u3068\u304d\uff0c\u7269\u4f53\u306f\u521d\u901f\u5ea6 $v_0$\uff0c\u52a0\u901f\u5ea6 $-g$ \u306e\u7b49\u52a0\u901f\u5ea6\u904b\u52d5\u3092\u884c\u3046\u306e\u3067\uff0c\u6642\u523b $t$ \u306b\u304a\u3051\u308b\u901f\u5ea6 $v$ \u304a\u3088\u3073\u4f4d\u7f6e $x$ \u306f\uff0c<\/p>\n\n\n\n<p>$$v=v_0-gt,\\quad x=v_0t-\\bun12gt^{\\mskip 2mu 2}$$<\/p>\n\n\n\n<p>\u3068\u304b\u3051\u308b\u3002<\/p>\n\n\n\n<p>\u6700\u9ad8\u70b9\u306b\u9054\u3059\u308b\u3068\u304d\uff0c\u7269\u4f53\u306e\u901f\u5ea6\u306f $0$ \u3068\u306a\u308b\u306e\u3067\uff0c<\/p>\n\n\n\n<p>$$0=v_0-gt_1\\qquad \\therefore\\quad t_1=\\bun{v_0}{g}$$<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group gsetumonnkakko\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>\u6c42\u3081\u308b\u9ad8\u3055 $h$ \u306f\uff0c\u6642\u523b $t_1$ \u306b\u304a\u3051\u308b\u7269\u4f53\u306e\u4f4d\u7f6e $x$ \u306b\u7b49\u3057\u3044\u306e\u3067\uff0c<\/p>\n\n\n\n<p>$$h=v_0t_1-\\bun12gt_1^2\\qquad \\therefore \\quad h=\\bun{v_0^2}{2g}$$<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group gsetumonnkakko\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>\u7269\u4f53\u304c\u5730\u9762\u306b\u9054\u3059\u308b\u3068\u304d\uff0c$x=0$ \u3068\u306a\u308b\u306e\u3067\uff0c<\/p>\n\n\n\n<p>$$0=v_0t_2-\\bun12gt_2^2\\qquad \\therefore \\quad t_2=\\bun{2v_0}{g}$$<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group gsetumonnkakko\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p>\u6642\u523b $t_2$ \u306b\u304a\u3051\u308b\u7269\u4f53\u306e\u901f\u5ea6\u306f\uff0c<\/p>\n\n\n\n<p>$$v=v_0-gt_2\\qquad \\therefore\\quad v=-v_0$$<\/p>\n\n\n\n<p>\u3088\u3063\u3066\uff0c\u6c42\u3081\u308b\u901f\u3055\u306f\u3053\u308c\u306e\u7d76\u5bfe\u5024\u3092\u8003\u3048\u308c\u3070\u3088\u3044\u306e\u3067\uff0c$V=v_0$<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u89e3\u304f\u3060\u3051\u306a\u3089\u7c21\u5358\u3060\u3051\u3069\u2026<\/h3>\n\n\n\n<p>\u81ea\u7531\u843d\u4e0b\u904b\u52d5\u3068\u540c\u69d8\uff0c\u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5\u3082\u7d50\u5c40\u306f\u6b63\u3057\u304f\u8ef8\u3092\u8a2d\u5b9a\u3057\u3066\u3057\u307e\u3048\u3070\u3042\u3068\u306f\u516c\u5f0f\u306e\u30aa\u30f3\u30d1\u30ec\u30fc\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u304c\uff0c\u3088\u308a\u7406\u89e3\u3092\u6df1\u3081\u308b\u305f\u3081\uff0c$v-t$ \u30b0\u30e9\u30d5\u306b\u3064\u3044\u3066\u3082\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u4e0a\u306e\u4f8b\u3067\u78ba\u8a8d\u3057\u305f\u7b49\u52a0\u901f\u5ea6\u904b\u52d5\u306e $v-t$ \u30b0\u30e9\u30d5\uff0c\u81ea\u529b\u3067\u304b\u3051\u307e\u3059\u304b\u2026\uff1f<\/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>$v-t$ \u30b0\u30e9\u30d5\u3092\u4f7f\u3044\u3053\u306a\u305b\u308b\u3088\u3046\u306b\u306a\u308b\u3068\u307f\u3048\u308b\u4e16\u754c\u304c\u5909\u308f\u308a\u307e\u3059\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">$v-t$ \u30b0\u30e9\u30d5\u3092\u4f7f\u3063\u305f\u8b70\u8ad6<\/h3>\n\n\n\n<p>\u307e\u305a\u306f $v-t$ \u30b0\u30e9\u30d5\u3092\u304b\u304f\u524d\u306b\uff0c\u925b\u76f4\u4e0a\u5411\u304d\u306b\u5ea7\u6a19\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u306e\u3067\uff0c\u52a0\u901f\u5ea6\u304c $-g$ \u3067\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u5ea7\u6a19\u306e\u6b63\u306e\u5411\u304d\u306f\u925b\u76f4\u4e0a\u5411\u304d\uff0c\u91cd\u529b\u52a0\u901f\u5ea6\u306f\u925b\u76f4\u4e0b\u5411\u304d\u306a\u306e\u3067\u771f\u9006\u3067\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading is-style-st-heading-custom-count post-hashiro-countA\">\u52a0\u901f\u5ea6\u3068\u30b0\u30e9\u30d5\u306e\u6982\u5f62<\/h3>\n\n\n\n<p>\u52a0\u901f\u5ea6 $-g$ \u304c $v-t$ \u30b0\u30e9\u30d5\u306e\u50be\u304d\u306b\u306a\u308b\u306e\u3067\uff0c$v-t$ \u30b0\u30e9\u30d5\u306f\u53f3\u80a9\u4e0b\u304c\u308a\u306e\u76f4\u7dda\u306b\u306a\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=\"184\" height=\"138\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406011.svg\" alt=\"\" class=\"wp-image-2043\"\/><noscript><img decoding=\"async\" width=\"184\" height=\"138\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406011.svg\" alt=\"\" class=\"wp-image-2043\"\/><\/noscript><\/figure>\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>\u6642\u523b $t=0$ \u3067 $v=v_0$ \u306a\u306e\u3067\uff0c\u30b0\u30e9\u30d5\u306e $v$ \u5207\u7247\u306f $v_0$ \u3067\u3059\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading is-style-st-heading-custom-count post-hashiro-countA\">\u6700\u9ad8\u70b9\u306b\u3064\u3044\u3066<\/h3>\n\n\n\n<p>\u4e0a\u306e\u4f8b\u3067\u3082\u78ba\u8a8d\u3057\u307e\u3057\u305f\u304c\uff0c<span class=\"st-mymarker-s-b\">\u6700\u9ad8\u70b9\u3067\u306f\u7269\u4f53\u306e\u901f\u5ea6\u304c $0$ \u306b\u306a\u308a\u307e\u3059\u3002<\/span><\/p>\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\">\u7269\u4f53\u304c\u6700\u9ad8\u70b9\u306b\u9054\u3059\u308b\u307e\u3067\u306f\u4e0a\u306b\u5411\u304b\u3063\u3066\u9032\u3080\u306e\u3067\u901f\u5ea6\u306f\u6b63\uff0c\u843d\u4e0b\u3057\u306f\u3058\u3081\u3066\u304b\u3089\u306f\u5730\u9762\u306b\u5411\u304b\u3063\u3066\u9032\u3080\u306e\u3067\u901f\u5ea6\u306f\u8ca0\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"has-no-st-margin-bottom has-text-color\" style=\"color:#666666\">\u305d\u306e\u3061\u3087\u3046\u3069\u5207\u308a\u66ff\u308f\u308a\u306e\u70b9\u304c\u6700\u9ad8\u70b9\u3067\u3042\u308a\uff0c\u305d\u306e\u3068\u304d\u306e\u901f\u5ea6\u304c $0$ \u3067\u3042\u308b\u3053\u3068\u306f\u7406\u89e3\u3057\u3084\u3059\u3044\u306f\u305a\u3067\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u76f4\u7dda\u4e0a\u306e\u904b\u52d5\u3067\u306f\uff0c<span class=\"st-mymarker-s\">\u904b\u52d5\u306e\u5411\u304d\u304c\u5909\u308f\u308b\u70b9\u3067\u901f\u5ea6\u304c $0$ \u306b\u306a\u308b<\/span>\u3053\u3068\u3092\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\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>\u904b\u52d5\u306e\u5411\u304d\u3068\u901f\u5ea6<\/p><div class=\"st-in-mybox\">\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u904b\u52d5\u306e\u5411\u304d\u304c\u5909\u308f\u308b\u70b9\uff08\u6700\u9ad8\u70b9\u306a\u3069\uff09\u3067\u306f\uff0c\u7269\u4f53\u306e\u901f\u5ea6\u304c $0$ \u306b\u306a\u308b\u3002<\/p>\n<\/div><\/div>\n\n\n\n<p>\u3053\u306e\u3053\u3068\u304b\u3089 $v-t$ \u30b0\u30e9\u30d5\u306b\u3064\u3044\u3066\uff0c\u76f4\u7dda\u3068 $t$ \u8ef8\u304c\u4ea4\u308f\u308b\u70b9\uff08$v=0$ \u3068\u306a\u308b\u70b9\uff01\uff09\u304c\u904b\u52d5\u306e\u6700\u9ad8\u70b9\u3092\u8868\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>$v$ \u304c\u8ca0\u306b\u306a\u308a\u306f\u3058\u3081\u305f\u3068\u3053\u308d\u304b\u3089\u843d\u4e0b\u904b\u52d5\u306b\u5207\u308a\u66ff\u308f\u308b\u308f\u3051\u3067\u3059\u3002\u6700\u9ad8\u70b9\u306e\u9ad8\u3055\u306f\uff0c\u305d\u308c\u307e\u3067\u306b\u7269\u4f53\u304c\u79fb\u52d5\u3057\u305f\u8ddd\u96e2\u3067\u3059\u304b\u3089\uff0c$v-t$ \u30b0\u30e9\u30d5\u306e\u9762\u7a4d\u3092\u6c42\u3081\u308c\u3070\u3088\u3044\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=\"184\" height=\"156\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406012.svg\" alt=\"\" class=\"wp-image-2044\"\/><noscript><img decoding=\"async\" width=\"184\" height=\"156\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406012.svg\" alt=\"\" class=\"wp-image-2044\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3053\u308c\u306f\u56f3\u304b\u3089\u3082\u308f\u304b\u308b\u901a\u308a\uff0c\u305f\u3060\u306e\u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u3059\u304b\u3089\uff0c$$h=\\bun12v_0,\\ t_1=\\Bun{v_0\\!^2}{2g}$$\u3068\u3057\u3066\u8a08\u7b97\u3067\u304d\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading is-style-st-heading-custom-count post-hashiro-countA\">\u5730\u9762\u306b\u843d\u4e0b\u3059\u308b\u307e\u3067\u306e\u904b\u52d5<\/h3>\n\n\n\n<p>\u3055\u3066\uff0c\u843d\u4e0b\u904b\u52d5\u306b\u5909\u308f\u3063\u3066\u304b\u3089\u306f\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n\n\n\n<p>$v-t$ \u30b0\u30e9\u30d5\u306e\u9762\u7a4d\u306f\u30b0\u30e9\u30d5\u4e0a\u306e\u8ca0\u306e\u9818\u57df\u306b\u306a\u3063\u3066\u304f\u308b\u306e\u3067<span class=\"st-mymarker-s\"><span class=\"st-mymarker-s-b\">\u9762\u7a4d\u306e\u5024\u3082\u8ca0\u3068\u3057\u3066\u8003\u3048\u308b<\/span><\/span>\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u7269\u4f53\u306e\u79fb\u52d5\u8ddd\u96e2\u3082\u8ca0\u306e\u5024\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u304b\u3089\u3082\uff0c$x$ \u8ef8\u6b63\u306e\u5411\u304d\u306e\u53cd\u5bfe\u65b9\u5411\u306b\u79fb\u52d5\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u304b\u306b\u78ba\u8a8d\u3067\u304d\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"218\" height=\"149\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406013.svg\" alt=\"\" class=\"wp-image-2045\" title=\"\"\/><noscript><img decoding=\"async\" width=\"218\" height=\"149\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406013.svg\" alt=\"\" class=\"wp-image-2045\" title=\"\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3067\u306f\u5730\u9762\u306b\u843d\u4e0b\u3059\u308b\u306e\u306f\u3069\u3053\u304b\u3068\u3044\u3046\u3068\uff0c\u5408\u8a08\u306e\u79fb\u52d5\u8ddd\u96e2\u304c $0$ \u306b\u306a\u308b\u5834\u6240\u3067\u3059\u3002\u3064\u307e\u308a\uff0c\u5de6\u5074\u306e\u300c\u6b63\u306e\u9818\u57df\u306e\u4e09\u89d2\u5f62\u300d\u3068\uff0c\u53f3\u5074\u306e\u300c\u8ca0\u306e\u9818\u57df\u306e\u4e09\u89d2\u5f62\u300d\u306e\u9762\u7a4d\u304c\u7b49\u3057\u304f\u306a\u3063\u3066\u6253\u3061\u6d88\u3057\u5408\u3046\u3068\u3053\u308d\u306b\u306a\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u306f2\u3064\u306e\u4e09\u89d2\u5f62\u304c\u5408\u540c\u306b\u306a\u308b\u3068\u3053\u308d\u3067\u3059\u306e\u3067\uff0c$t_2=2t_1$\uff0c$v_2=-v_0$ \u3067\u3042\u308b\u3053\u3068\u304c\u77ac\u6642\u306b\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>\u4ee5\u4e0a\u306e $v-t$\u30b0\u30e9\u30d5\u306e\u8a71\u304b\u3089\u3082\u308f\u304b\u308b\u901a\u308a\uff0c<span class=\"st-mymarker-s\">\u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5\u306f\u975e\u5e38\u306b\u5bfe\u79f0\u6027\u306e\u3088\u3044\u904b\u52d5<\/span>\u3067\u3059\u3002\u5bfe\u79f0\u6027\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\uff0c\u4f8b\u984c\u306e (3) \u3084(4) \u306f\u77ac\u6642\u306b\u7b54\u3048\u304c\u5c0e\u3051\u308b\u3088\u3046\u306b\u306a\u308b\u306e\u3067\uff0c\u305c\u3072\u3053\u306e\u8003\u3048\u65b9\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3066\u304a\u3044\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>\u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5\u306e\u5bfe\u79f0\u6027<\/p><div class=\"st-in-mybox\">\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5\u306f\u975e\u5e38\u306b\u5bfe\u79f0\u6027\u304c\u3088\u3044\u3002$v-t$ \u30b0\u30e9\u30d5\u3068\u3042\u308f\u305b\u3066\u8003\u3048\u308b\u3053\u3068\u3067\uff0c\u6697\u7b97\u3067\u89e3\u3051\u308b\u554f\u984c\u3082\u5897\u3048\u308b\u3002<\/p>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u516c\u5f0f\u3092\u4f7f\u308f\u305a\u306b\u610f\u5473\u3092\u8003\u3048\u308b<\/h3>\n\n\n\n<p>$v-t$ \u30b0\u30e9\u30d5\u3068\u306f\u7570\u306a\u308b\u8003\u3048\u65b9\u3067\u3059\u304c\uff0c(1) \u306b\u3064\u3044\u3066\u3082\u6163\u308c\u3066\u304f\u308b\u3068\u77ac\u6642\u306b\u7b54\u3048\u304c\u5c0e\u3051\u307e\u3059\u3002\u89e3\u7b54\u3067\u306f\u516c\u5f0f\u3092\u5229\u7528\u3057\u307e\u3057\u305f\u304c\uff0c\u52a0\u901f\u5ea6\u304c $-g$ \u3067\u3042\u308b\u3053\u3068\u306e\u610f\u5473\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u306f<span class=\"st-mymarker-s-b\">\u300c\u901f\u5ea6\u304c $1$ \u79d2\u9593\u306b $g$ \u305a\u3064\u6e1b\u3063\u3066\u3044\u304f\u300d<\/span>\u3053\u3068\u3092\u610f\u5473\u3057\u3066\u3044\u307e\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<p>\u3088\u3063\u3066 (1) \u306e\u554f\u984c\u306f\uff0c\u300c\u521d\u901f\u5ea6\u304c $v_0$ \u3067\uff0c\u3053\u308c\u304c $1$ \u79d2\u9593\u306b $g$ \u305a\u3064\u6e1b\u3063\u3066\u3044\u3063\u305f\u5834\u5408\uff0c\u4f55\u79d2\u5f8c\u306b\u901f\u5ea6\u306f $0$ \u306b\u306a\u308a\u307e\u3059\u304b\uff1f\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u805e\u304b\u308c\u3066\u3044\u308b\u306b\u904e\u304e\u306a\u3044\u308f\u3051\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-st-blocks-my-box st-mybox has-title post-hashiro-normalbox\" style=\"background-color:#fff;border-color:#777777\"><p class=\"st-mybox-title\" style=\"color:#777777;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-check-circle st-css-no\" aria-hidden=\"\"><\/i>\u7c21\u5358\u306a\u4f8b<\/p><div 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\u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5 \u91cd\u529b\u52a0\u901f\u5ea6 \u91cd\u529b\u52a0\u901f\u5ea6\u3068\u306f \u5f53\u305f\u308a\u524d\u306e\u3053\u3068\u3067\u3059\u304c\uff0c\u7a7a\u4e2d\u3067\u7269\u304b\u3089\u624b\u3092\u96e2\u3059\u3068\u5730\u9762\u306b\u5411\u304b\u3063\u3066\u843d\u4e0b\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u306e\u904b\u52d5\u306e\u3053\u3068\u3092\u81ea\u7531\u843d\u4e0b\u904b\u52d5\u3068\u3044\u3044\u307e\u3059\u3002 &#8230; 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