{"id":2963,"date":"2022-10-02T17:03:56","date_gmt":"2022-10-02T08:03:56","guid":{"rendered":"https:\/\/torisetudy.com\/?p=2963"},"modified":"2023-01-21T20:19:58","modified_gmt":"2023-01-21T11:19:58","slug":"%e3%80%90%e7%9f%a5%e3%81%a3%e3%81%a6%e3%82%8b%e3%81%a0%e3%81%91%e3%81%a7%e5%b7%ae%e3%81%8c%e3%81%a4%e3%81%8f%e3%80%91%e7%ad%94%e3%81%88%e3%81%ae%e7%a2%ba%e8%aa%8d%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/torisetudy.com\/?p=2963","title":{"rendered":"\u3010\u77e5\u3063\u3066\u308b\u3060\u3051\u3067\u5dee\u304c\u3064\u304f\u3011\u7b54\u3048\u306e\u78ba\u8a8d\u65b9\u6cd5"},"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> \u7269\u7406\u306f\u70b9\u6570\u304c\u5439\u304d\u98db\u3073\u3084\u3059\u3044\uff1f<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_1\">2<\/span> \u3010\u30df\u30b9\u3092\u8d77\u3053\u3055\u306a\u3044\u3011\u56f3\u306e\u304b\u304d\u65b9\u306e\u5de5\u592b<\/a><\/li><li><a href=\"#i-3\"><span class=\"toc_number toc_depth_1\">3<\/span> \u3010\u30df\u30b9\u3092\u898b\u3064\u3051\u308b\u2460\u3011\u6975\u7aef\u306a\u72b6\u6cc1\u3092\u8003\u3048\u308b<\/a><\/li><li><a href=\"#i-4\"><span class=\"toc_number toc_depth_1\">4<\/span> \u3010\u30df\u30b9\u3092\u898b\u3064\u3051\u308b\u2461\u3011\u5358\u4f4d\u3092\u5229\u7528\u3057\u305f\u6b21\u5143\u30c1\u30a7\u30c3\u30af<\/a><\/li><li><a href=\"#i-5\"><span class=\"toc_number toc_depth_1\">5<\/span> \u307e\u3068\u3081<\/a><\/li><\/ul><\/div>\n<h2 class=\"wp-block-heading\"><span id=\"i\">\u7269\u7406\u306f\u70b9\u6570\u304c\u5439\u304d\u98db\u3073\u3084\u3059\u3044\uff1f<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u7269\u7406\u306e\u554f\u984c\u306e\u7279\u5fb4<\/h3>\n\n\n\n<p>\u5165\u8a66\u3067\u51fa\u984c\u3055\u308c\u308b\u7269\u7406\u306e\u554f\u984c\u3002<\/p>\n\n\n\n<p>\u5171\u901a\u30c6\u30b9\u30c8\u306f\u5358\u767a\u306e\u554f\u984c\u304c\u591a\u3044\u3067\u3059\u304c\uff0c2\u6b21\u8a66\u9a13\u3067\u306f1\u3064\u306e\u30c6\u30fc\u30de\u306b\u6cbf\u3063\u305f\u5185\u5bb9\u306e\u51fa\u984c\u3068\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u305d\u3046\u3057\u305f\u6027\u8cea\u4e0a\uff0c<span class=\"st-mymarker-s-b\">\u524d\u534a\u306e\u554f\u984c\u3067\u30df\u30b9\u3092\u3057\u305f\u305f\u3081\u306b\u305d\u306e\u5148\u5168\u3066\u306e\u554f\u984c\u306e\u7b54\u3048\u304c\u5408\u308f\u306a\u3044\uff0c\u3068\u3044\u3063\u305f\u4e8b\u6545\u3082\u8d77\u3053\u308a\u304b\u306d\u307e\u305b\u3093<\/span>\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>\u6a21\u8a66\u3067\u3084\u3089\u304b\u3057\u305f\u3053\u3068\u3042\u308a\u307e\u3059\u3002\u3069\u3046\u3059\u308c\u3070\u30df\u30b9\u306f\u306a\u304f\u306a\u308b\u306e\u3067\u3057\u3087\u3046\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<h3 class=\"wp-block-heading\">\u4e8b\u6545\u3092\u9632\u3050\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u3053\u3046\u3057\u305f\u4e8b\u6545\u3092\u9632\u3050\u305f\u3081\u306e\u65b9\u6cd5\u306f\u4ee5\u4e0b\u306e2\u3064\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>\u30df\u30b9\u3092\u9632\u3050\u65b9\u6cd5<\/p><div class=\"st-in-mybox\">\n<ul class=\"is-style-st-no wp-block-list\"><li>\u305d\u3082\u305d\u3082\u30df\u30b9\u304c\u8d77\u3053\u3089\u306a\u3044\u65b9\u6cd5\u3067\u554f\u984c\u3092\u89e3\u304f\u3002<\/li><li>\u30df\u30b9\u3057\u305f\u3068\u3057\u3066\u3082\uff0c\u7b54\u3048\u306e\u78ba\u8a8d\u3092\u884c\u3063\u3066\u3059\u3050\u306b\u4fee\u6b63\u3059\u308b\u3002<\/li><\/ul>\n<\/div><\/div>\n\n\n\n<p>\u3042\u305f\u308a\u307e\u3048\u3058\u3083\u3093\uff01\u3068\u601d\u3046\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\uff0c\u5177\u4f53\u7684\u306a\u65b9\u6cd5\u3092\u77e5\u3063\u3066\u3044\u307e\u3059\u304b\uff1f\u666e\u6bb5\u304b\u3089\u53d6\u308a\u5165\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/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\">\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u3081\u3070\uff0c\u305d\u3046\u3057\u305f\u30df\u30b9\u3092\u3050\u3063\u3068\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b<\/span>\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-2\">\u3010\u30df\u30b9\u3092\u8d77\u3053\u3055\u306a\u3044\u3011\u56f3\u306e\u304b\u304d\u65b9\u306e\u5de5\u592b<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">$\\sin\\theta$ \u3068 $\\cos\\theta$<\/h3>\n\n\n\n<p>\u529b\u30922\u65b9\u5411\u306b\u6210\u5206\u5206\u89e3\u3057\u305f\u3068\u304d\u306b\uff0c\u3069\u3063\u3061\u304c $\\sin$ \u3067\uff0c\u3069\u3063\u3061\u304c $\\cos$ \u304b\uff0c\u60a9\u3080\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon4 clearfix\"><div class=\"st-kaiwa-area2\"><div class=\"st-kaiwa-hukidashi2\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u3044\u3064\u3082\u56f3\u306b\u89d2\u5ea6\u3092\u304b\u304d\u8fbc\u3093\u3067\uff0c\u4e01\u5be7\u306b\u8003\u3048\u3066\u3044\u307e\u3059\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\u5b66\u7fd2\uff09.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u5b66\u7fd2\uff09.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name2\">\u751f\u5f92<\/div><\/div><\/div>\n\n\n\n<p>\u6bce\u56de\u6bce\u56de\u56f3\u5f62\u7684\u306b\u8003\u3048\u3066\u3044\u3066\u306f\u6642\u9593\u304c\u3082\u3063\u305f\u3044\u306a\u3044\uff0c\u30a2\u30db\u3089\u3057\u3044\u3002<\/p>\n\n\n\n<p>\u6025\u3044\u3067\u3044\u308b\u3068\u304d\u306b\u306f\u30df\u30b9\u3082\u8d77\u3053\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p><span class=\"st-mymarker-s\">\u3069\u3063\u3061\u304c $\\sin$ \u3067\u3069\u3063\u3061\u304c $\\cos$ \u304b\u304c\u4e00\u77ac\u3067\u308f\u304b\u308b\u3088\u3046\u306b\u306a\u308a\uff0c\u30df\u30b9\u3082\u307b\u307c\u30bc\u30ed\u306b\u306a\u308b\u65b9\u6cd5<\/span>\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7c21\u5358\u306a\u4f8b<\/h3>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u56f3\u306e\u3088\u3046\u306a\u72b6\u6cc1\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"110\" height=\"116\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406046.svg\" alt=\"\" class=\"wp-image-2874\"\/><noscript><img decoding=\"async\" width=\"110\" height=\"116\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406046.svg\" alt=\"\" class=\"wp-image-2874\"\/><\/noscript><\/figure>\n\n\n\n<p>\u659c\u9762\u4e0a\u306e\u7269\u4f53\u306e\u91cd\u529b $mg$ \u3092\u659c\u9762\u306b\u5e73\u884c\u306a\u65b9\u5411\uff08\u2460\uff09\uff0c\u659c\u9762\u306b\u5782\u76f4\u306a\u65b9\u5411\uff08\u2461\uff09\u306b\u5206\u89e3\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u304c\uff0c\u3069\u3061\u3089\u304c $mg\\sin\\theta$ \u3067\u3069\u3061\u3089\u304c $mg\\cos\\theta$ \u3060\u304b\u308f\u304b\u308a\u307e\u3059\u304b\uff1f<\/p>\n\n\n\n<p>\u6b63\u89e3\u306f\uff0c<\/p>\n\n\n\n<p>$$ \\stext{\u2460}\\ mg\\sin\\theta\\qquad \\stext{\u2461}\\ mg\\cos\\theta$$\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u8a66\u9a13\u3067\u306f\u3053\u306e\u3088\u3046\u306b\u529b\u3092\u5206\u89e3\u3059\u308b\u5834\u9762\u304c\u305f\u304f\u3055\u3093\u3042\u308a\u307e\u3059\u304c\uff0c\u3069\u3093\u306a\u3068\u304d\u3067\u3082\u77ac\u6642\u306b\uff0c\u3057\u304b\u3082\u6b63\u78ba\u306b\u300c\u3069\u3061\u3089\u304c $\\sin$ \u3067\u3069\u3061\u3089\u304c $\\cos$ \u304b\u300d\u304c\u308f\u304b\u3089\u306a\u3044\u3068\u3044\u3051\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u3053\u306e\uff0c\u300c\u3069\u3061\u3089\u304c $\\sin$ \u3067\u3069\u3061\u3089\u304c $\\cos$ \u304b\u300d\u3092\u5224\u65ad\u3059\u308b\u305f\u3081\u306e\u30dd\u30a4\u30f3\u30c8\u306f\uff0c<span class=\"st-mymarker-s\">\u81ea\u5206\u3067\u56f3\u3092\u304b\u304f\u3068\u304d\u306b\uff0c$\\theta$ \u304c\u5c0f\u3055\u304f\u306a\u308b\u3088\u3046\u306b\u304b\u3044\u3066\u304a\u304f<\/span>\u3053\u3068\u306b\u5c3d\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b21\u306e\u56f3\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"128\" height=\"108\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406047.svg\" alt=\"\" class=\"wp-image-2877\"\/><noscript><img decoding=\"async\" width=\"128\" height=\"108\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406047.svg\" alt=\"\" class=\"wp-image-2877\"\/><\/noscript><\/figure>\n\n\n\n<p>$\\theta$ \u3092\u5c0f\u3055\u304f\uff08$20\\Deg$\u304f\u3089\u3044\u306b\uff09\u304b\u304d\u307e\u3057\u305f\u3002\u3059\u308b\u3068 \u2460 \u306e\u77e2\u5370\u3068 \u2461 \u306e\u77e2\u5370\u306e\u9577\u3055\u304c\u660e\u3089\u304b\u306b\u9055\u3044\u307e\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<p>$\\theta$ \u304c\u5c0f\u3055\u3044\u3068\u304d\uff0c$\\cos\\theta$ \u3068 $\\sin\\theta$ \u306e\u5927\u5c0f\u95a2\u4fc2\u3092\u5358\u4f4d\u5186\u3067\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"187\" height=\"139\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5358\u4f4d\u5186.svg\" alt=\"\" class=\"wp-image-2984\"\/><noscript><img decoding=\"async\" width=\"187\" height=\"139\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5358\u4f4d\u5186.svg\" alt=\"\" class=\"wp-image-2984\"\/><\/noscript><\/figure>\n\n\n\n<p>\u56f3\u3092\u898b\u308b\u3068\uff0c$\\cos\\theta$ \u306f\u307b\u307c $1$ \u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\uff0c$\\sin\\theta$ \u306f $\\bun12$ \u306b\u3059\u3089\u9054\u3057\u3066\u3044\u306a\u3044\u3067\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<p>\u3068\u3044\u3046\u3053\u3068\u3067\uff0c\u660e\u3089\u304b\u306b $\\cos\\theta&gt;\\sin\\theta$ \u3067\u3059\u304b\u3089\uff0c<span class=\"st-mymarker-s\">\u300c\u9577\u3044\u77e2\u5370\u306e\u307b\u3046\u304c $\\cos\\theta$\uff01\u300d<\/span>\u3068\u898b\u305f\u76ee\u3067\u3059\u3050\u306b\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3064\u307e\u308a\uff0c\u2461 \u304c $mg\\cos\\theta$ \u3060\u3068\u3044\u3046\u3053\u3068\u304c\u4e00\u77ac\u3067\u308f\u304b\u308b\u306e\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>\u898b\u305f\u76ee\u3067\u3069\u3063\u3061\u304c\u9577\u3044\u304b\uff0c\u306a\u3089\u4e00\u77ac\u3067\u5224\u65ad\u3067\u304d\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\u56f3\u306f $\\theta$ \u3092 $45\\Deg$ \u304f\u3089\u3044\u3068\u3057\u3066\u304b\u3044\u3066\u3057\u307e\u3063\u305f\u7d50\u679c\uff0c\u77e2\u5370\u306e\u898b\u305f\u76ee\u306e\u9577\u3055\u304c\u540c\u3058\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u306e\u3067\u533a\u5225\u304c\u4ed8\u3051\u3065\u3089\u304b\u3063\u305f\u308f\u3051\u3067\u3059\u306d\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u529b\u306e\u4f5c\u7528\u56f3\u306f\u7269\u4f53\u3054\u3068\u306b\u81ea\u5206\u3067\u30a4\u30c1\u304b\u3089\u304b\u304f\u306e\u3067\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u969b\u306b<span class=\"st-mymarker-s\">\u5fc5\u305a $\\theta$ \u304c\u5c0f\u3055\u304f\u306a\u308b\u3088\u3046\u306b\u304b\u304f\u7fd2\u6163\u3092\u3064\u3051\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044<\/span>\u3002<\/p>\n\n\n\n<p>\u305d\u3046\u3059\u308c\u3070\uff0c\u300c\u6210\u5206\u5206\u89e3\u3057\u305f\u3068\u304d\u306f\u9577\u3044\u307b\u3046\u304c $\\cos\\theta$\uff0c\u77ed\u3044\u307b\u3046\u304c $\\sin\\theta$\u300d\u3068\u898b\u305f\u76ee\u3067\u4e00\u77ac\u3067\u308f\u304b\u308b\u3088\u3046\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>\u30dd\u30a4\u30f3\u30c8<\/p><div class=\"st-in-mybox\">\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u529b\u306e\u4f5c\u7528\u56f3\u306f\uff0c\u89d2\u5ea6 $\\theta$ \u304c\u5c0f\u3055\u304f\u306a\u308b\uff08$20\\Deg$ \u304f\u3089\u3044\uff09\u3088\u3046\u306b\u304b\u304f\u3002\u529b\u3092\u6210\u5206\u5206\u89e3\u3059\u308b\u969b\uff0c\u9577\u3044\u307b\u3046\u304c $\\cos\\theta$ \u306b\u5bfe\u5fdc\u3057\uff0c\u77ed\u3044\u307b\u3046\u304c $\\sin\\theta$ \u306b\u5bfe\u5fdc\u3059\u308b\u3002<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-3\">\u3010\u30df\u30b9\u3092\u898b\u3064\u3051\u308b\u2460\u3011\u6975\u7aef\u306a\u72b6\u6cc1\u3092\u8003\u3048\u308b<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6587\u5b57\u3092\u4f7f\u3063\u305f\u554f\u984c\u3067\u306f<\/h3>\n\n\n\n<p>\u6570\u5024\u3067\u306f\u306a\u304f\uff0c\u6587\u5b57\u3092\u4f7f\u3063\u3066\u89e3\u304f\u554f\u984c\u304c\u7269\u7406\u3067\u306f\u591a\u3044\u3067\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<p>\u91cd\u529b\u52a0\u901f\u5ea6 $g$ \u3084\uff0c\u4e07\u6709\u5f15\u529b\u5b9a\u6570 $G$ \u306e\u3088\u3046\u306b\uff0c\u5024\u304c\u6c7a\u307e\u3063\u3066\u3044\u308b\u3082\u306e\u3082\u3042\u308a\u307e\u3059\u304c\uff0c\u7269\u4f53\u306e\u8cea\u91cf $m$ \u3084\uff0c\u5742\u9053\u306e\u50be\u659c $\\theta$ \u306f\u4e00\u822c\u7684\u306a\u6587\u5b57\u3067\u3042\u308a\uff0c<span class=\"st-mymarker-s-b\">\u5177\u4f53\u7684\u306a\u6570\u5024\u3092\u4ee3\u5165\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059<\/span>\u3002<\/p>\n\n\n\n<p>\u305f\u3068\u3048\u3070\uff0c$\\theta$ \u306e\u65b9\u5411\u3078\u306e\u659c\u3081\u6295\u5c04\u3067\u306f\uff0c$\\theta$ \u3092 $0\\leqq\\theta\\leqq\\bun{\\pi}{2}$ \u306e\u7bc4\u56f2\u306e\u5909\u6570\u3068\u3057\u3066\u8003\u3048\uff0c$\\theta=\\bun{\\pi}{4}$ \u306e\u3068\u304d\u306b\u6c34\u5e73\u5230\u9054\u8ddd\u96e2 $L$ \u304c\u6700\u3082\u5927\u304d\u304f\u306a\u308b\uff0c\u3068\u3044\u3063\u305f\u3053\u3068\u3092\u8003\u3048\u307e\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"244\" height=\"108\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406015-1.svg\" alt=\"\" class=\"wp-image-2418\"\/><noscript><img decoding=\"async\" width=\"244\" height=\"108\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406015-1.svg\" alt=\"\" class=\"wp-image-2418\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3053\u3046\u3057\u305f\uff0c<span class=\"st-mymarker-s\">\u6587\u5b57\u306b\u5177\u4f53\u7684\u306a\u6570\u5024\u3092\u4ee3\u5165\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u3044\u3046\u7279\u5fb4\u3092\u4f7f\u3046\u3053\u3068\u3067\uff0c\u7b54\u3048\u306e\u78ba\u8a8d\u3092\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059<\/span>\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6975\u7aef\u306a\u5834\u5408\u3092\u8003\u3048\u308b<\/h3>\n\n\n\n<p>\u4e0a\u3067\u653e\u7269\u904b\u52d5\u306e\u4f8b\u3092\u8003\u3048\u307e\u3057\u305f\u304c\uff0c$\\theta$ \u3068\u3044\u308f\u308c\u308b\u3068\u3069\u3046\u3057\u3066\u3082 $30\\Deg$ \u304b\u3089 $60\\Deg$ \u304f\u3089\u3044\u306e\u30a4\u30e1\u30fc\u30b8\u3092\u6301\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u304c\uff0c$\\theta=0$ \u3084 $\\theta=\\bun{\\pi}{2}$ \u3060\u3063\u3066\u3044\u3044\u308f\u3051\u3067\u3059\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>$\\theta=\\bun{\\pi}{2}$ \u306e\u72b6\u6cc1\u3063\u3066\u3064\u307e\u308a\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>$\\theta=\\bun{\\pi}{2}$ \u3068\u3044\u3046\u3053\u3068\u306f\uff0c\u771f\u4e0a\u306b\u6295\u3052\u4e0a\u3052\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<p>\u3064\u307e\u308a\uff0c\u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5\u306b\u306a\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u653e\u7269\u904b\u52d5\u3068\u3057\u3066\u6c42\u3081\u305f\u5024\uff08\u6c34\u5e73\u5230\u9054\u8ddd\u96e2\u3084\uff0c\u6700\u9ad8\u70b9\u306b\u9054\u3059\u308b\u307e\u3067\u306e\u6642\u9593\u306a\u3069\uff09\u306b\uff0c$\\theta=\\bun{\\pi}{2}$ \u3092\u4ee3\u5165\u3059\u308b\u3068\uff0c\u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5\u3068\u540c\u3058\u5024\u304c\u3067\u3066\u3053\u306a\u3044\u3068\u3044\u3051\u306a\u3044\uff0c\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u305f\u3068\u3048\u3070\uff0c\u653e\u7269\u904b\u52d5\u3067\u6700\u9ad8\u70b9\u306b\u9054\u3059\u308b\u307e\u3067\u306e\u6642\u9593\u306f $\\bun{v_0\\sin\\theta}{g}$ \u3068\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\uff0c\u3053\u308c\u306b $\\theta=\\bun{\\pi}{2}$ \u3092\u4ee3\u5165\u3059\u308b\u3068 $\\bun{v_0}{g}$ \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u306f\u78ba\u304b\u306b\uff0c\u925b\u76f4\u6295\u3052\u4e0a\u3052\u904b\u52d5\u306b\u304a\u3044\u3066\u7269\u4f53\u304c\u6700\u9ad8\u70b9\u306b\u9054\u3059\u308b\u307e\u3067\u306e\u6642\u9593 $\\bun{v_0}{g}$ \u3068\u4e00\u81f4\u3057\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p>\u4eee\u306b $\\bun{2v_0}{g}$ \u306e\u3088\u3046\u306a\u5024\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u3089\uff0c\u305d\u306e\u6642\u70b9\u3067\u300c\u81ea\u5206\u306e\u7b54\u3048\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u306a\u300d\u3068\u6c17\u4ed8\u3051\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7c21\u5358\u306a\u4f8b<\/h3>\n\n\n\n<p>\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u554f\u984c\u3092\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<\/span><\/p><div class=\"free-inbox\">\n<p>\u6ed1\u3089\u304b\u306b\u52d5\u304f\u5b9a\u6ed1\u8eca\u306b\uff0c\u8cea\u91cf\u306e\u7121\u8996\u3067\u304d\u308b\u7cf8\u3092\u4ecb\u3057\u3066\u8cea\u91cf\u304c $M$ \u306e\u5c0f\u7403A\u3068\uff0c\u8cea\u91cf\u304c $m$ \u306e\u5c0f\u7403B\u304c\u7e4b\u304c\u308c\u3066\u3044\u308b\u3002\u5c0f\u7403\u304b\u3089\u540c\u6642\u306b\u305d\u3063\u3068\u624b\u3092\u96e2\u3059\u3068\uff0c\u5c0f\u7403A\u304c\u4e0b\u964d\u3057\u59cb\u3081\u305f\u3002\u4e0b\u964d\u3059\u308b\u3068\u304d\u306e\u52a0\u901f\u5ea6\u306e\u5927\u304d\u3055 $a$ \u3092\u6c42\u3081\u3088\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"112\" height=\"168\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406320A.svg\" alt=\"\" class=\"wp-image-2982\"\/><noscript><img decoding=\"async\" width=\"112\" height=\"168\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406320A.svg\" alt=\"\" class=\"wp-image-2982\"\/><\/noscript><\/figure>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div><\/div>\n\n\n\n<p>\u554f\u984c\u81ea\u4f53\u306f\u96e3\u3057\u304f\u306a\u3044\u3067\u3057\u3087\u3046\u3002\u904b\u52d5\u65b9\u7a0b\u5f0f\u306f\u305d\u308c\u305e\u308c<\/p>\n\n\n\n<p>$$Ma=Mg-T,\\ ma=T-mg$$\u3068\u306a\u308a\u307e\u3059\u306e\u3067\uff0c\u3053\u308c\u3092\u89e3\u304f\u3053\u3068\u3067 $a=\\bun{M-m}{M+m}\\,g$ \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>\u3055\u3066\uff0c\u7b54\u3048\u306e\u78ba\u8a8d\u3092\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h4 class=\"is-style-st-heading-custom-check wp-block-heading\">$m=0\\ $\u306e\u3068\u304d<\/h4>\n\n\n\n<p>\u3053\u306e\u5834\u5408\uff0c\u5c0f\u7403B\u306f\u306a\u3044\u3082\u306e\u3068\u3057\u3066\u8003\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u3046\u306a\u308b\u3068\u3082\u306f\u3084\u7cf8\u3082\u6ed1\u8eca\u3082\u5f79\u5272\u304c\u306a\u304f\u306a\u308a\uff0c\u5c0f\u7403A\u304c\u305f\u3060\u305f\u3060\u81ea\u7531\u843d\u4e0b\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3064\u307e\u308a\uff0c\u300c$a=g$ \u306b\u306a\u308b\u306f\u305a\u300d\u3068\u3044\u3046\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u5148\u307b\u3069\u6c42\u3081\u305f\u7b54\u3048 $a=\\bun{M-m}{M+m}\\,g$ \u306b $m=0$ \u3092\u4ee3\u5165\u3059\u308b\u3068\uff0c\u78ba\u304b\u306b $a=g$ \u3068\u306a\u308a\u307e\u3059\u306e\u3067\uff0c\u660e\u3089\u304b\u306a\u9593\u9055\u3044\u306f\u306a\u3055\u305d\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"is-style-st-heading-custom-check wp-block-heading\">$M\\to\\infty\\ $ \u306e\u3068\u304d<\/h4>\n\n\n\n<p>\u8cea\u91cf $M$ \u304c\u975e\u5e38\u306b\u5927\u304d\u3044\u5834\u5408\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5c0f\u7403A\u304c\u30dc\u30fc\u30ea\u30f3\u30b0\u306e\u7403\uff0c\u5c0f\u7403B\u304c\u307b\u3053\u308a\uff0c\u304f\u3089\u3044\u306e\u30a4\u30e1\u30fc\u30b8\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u5834\u5408\uff0c\u307b\u3053\u308a\u306f\u3082\u306f\u3084\u7121\u8996\u3067\u304d\u307e\u3059\u3088\u306d\u3002\u3042\u3063\u3066\u3082\u306a\u304f\u3066\u3082\u540c\u3058\u3002<\/p>\n\n\n\n<p>\u3068\u3044\u3046\u3053\u3068\u3067\uff0c$m=0$ \u306e\u3068\u304d\u3068\u540c\u69d8\u306b $a=g$ \u3068\u306a\u308b\u306f\u305a\u3067\u3059\u304c\uff0c$a=\\bun{M-m}{M+m}\\,g$ \u3067 $M\\to\\infty$ \u3068\u3059\u308b\u3068\uff0c\u78ba\u304b\u306b $a\\to g$ \u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u78ba\u304b\u306b\u660e\u3089\u304b\u306a\u9593\u9055\u3044\u306f\u306a\u3055\u305d\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"is-style-st-heading-custom-check wp-block-heading\">$M=m\\ $ \u306e\u3068\u304d<\/h4>\n\n\n\n<p>\u3053\u306e\u3068\u304d\uff0c2\u3064\u306e\u5c0f\u7403\u306f\u529b\u304c\u3064\u308a\u5408\u3063\u3066\u9759\u6b62\u3057\u307e\u3059\u3002\u3064\u307e\u308a\uff0c$a=0$ \u3068\u306a\u308b\u306f\u305a\u3002<\/p>\n\n\n\n<p>$a=\\bun{M-m}{M+m}\\,g$ \u3067 $M=m$ \u3068\u3059\u308b\u3068\uff0c\u78ba\u304b\u306b $a=0$ \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\u3082\u77db\u76fe\u306f\u306a\u3055\u305d\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u3068\u3044\u3046\u3053\u3068\u3067\uff0c3\u901a\u308a\u78ba\u8a8d\u3057\u3066\u77db\u76fe\u306f\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\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>\u3053\u308c\u3067\u3060\u3044\u3076\u7b54\u3048\u306b\u81ea\u4fe1\u3092\u6301\u3066\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>\u4eee\u306b\u554f\u984c\u304c\u6b63\u3057\u304f\u89e3\u3051\u3066\u3044\u306a\u304f\u3066\uff0c$a=\\bun{m-M}{M+m}\\,g$ \u3068\u306a\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u305f\u5834\u5408\u3067\u3042\u308c\u3070\uff0c$m=0$ \u306e\u3068\u304d\u3068 $M\\to\\infty$ \u306e\u3068\u304d\u306b\u77db\u76fe\u304c\u751f\u3058\u308b\u305f\u3081\uff0c\u30df\u30b9\u306b\u6c17\u3065\u304f\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\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\">\u305f\u3060\u3057\uff0c\u6975\u7aef\u306a\u5834\u5408\u3092\u4f55\u901a\u308a\u304b\u30c1\u30a7\u30c3\u30af\u3057\u3066\u77db\u76fe\u304c\u306a\u304f\u3066\u3082\uff0c\u7b54\u3048\u304c\u7d76\u5bfe\u306b\u5408\u3063\u3066\u3044\u308b\u4fdd\u8a3c\u306b\u306f\u306a\u3089\u306a\u3044\u3002\u3042\u304f\u307e\u3067\uff0c\u660e\u3089\u304b\u306a\u30df\u30b9\u3092\u62fe\u3044\u4e0a\u3052\u308b\u3068\u3044\u3046\u30c1\u30a7\u30c3\u30af\u65b9\u6cd5\u306a\u306e\u3067\u5ff5\u306e\u305f\u3081\u3002<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-4\">\u3010\u30df\u30b9\u3092\u898b\u3064\u3051\u308b\u2461\u3011\u5358\u4f4d\u3092\u5229\u7528\u3057\u305f\u6b21\u5143\u30c1\u30a7\u30c3\u30af<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5358\u4f4d\u306f\u8003\u3048\u308b\u306e\u304c\u9762\u5012\u3060\u3051\u308c\u3069\u2026<\/h3>\n\n\n\n<p>\u3053\u3053\u307e\u3067\u306e\u5b66\u7fd2\u3067\uff0c\u5404\u7269\u7406\u91cf\u306b\u5bfe\u3057\u3066\u5358\u4f4d\u3092\u5b66\u7fd2\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u305f\u3068\u3048\u3070\uff0c\u52a0\u901f\u5ea6\u306a\u3089 $\\mss$\uff0c\u529b\u306a\u3089 $\\punit{N}$\uff0c\u30a8\u30cd\u30eb\u30ae\u30fc\u306a\u3089 $\\punit{J}$ \u3067\u3057\u305f\u306d\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u5171\u901a\u30c6\u30b9\u30c8\u3067\u306f\u5358\u4f4d\u304c\u7701\u7565\u3055\u308c\u3066\u51fa\u984c\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u304f\uff0c\u6587\u5b57\u306e\u307f\u306e\u8a08\u7b97\u3067\u7b54\u3048\u304c\u51fa\u305b\u3066\u3057\u307e\u3044\u307e\u3059\uff08\u305d\u308c\u306b\u306a\u3089\u3044\uff0c\u672c\u66f8\u306b\u63b2\u8f09\u3057\u3066\u3044\u308b\u554f\u984c\u3067\u306f\u57fa\u672c\u7684\u306b\u5358\u4f4d\u3092\u7701\u7565\u3057\u3066\u3044\u307e\u3059\uff09\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon4 clearfix\"><div class=\"st-kaiwa-area2\"><div class=\"st-kaiwa-hukidashi2\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u6570\u5024\u8a08\u7b97\u3057\u306a\u304f\u3066\u3088\u3044\u3057\uff0c\u300c\u898b\u6163\u308c\u305f\u5f62\u300d\u3082\u51fa\u3066\u304f\u308b\u3057\uff0c\u89e3\u304d\u3084\u3059\u3044\u3067\u3059\u3088\u306d\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\u5b66\u7fd2\uff09.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u5b66\u7fd2\uff09.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name2\">\u751f\u5f92<\/div><\/div><\/div>\n\n\n\n<p>\u3067\u306f\uff0c\u5358\u4f4d\u306f\u899a\u3048\u306a\u304f\u3066\u3082\u3088\u3044\u306e\u304b\u3068\u3044\u308f\u308c\u308b\u3068\u305d\u3046\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p><span class=\"st-mymarker-s\">\u5358\u4f4d\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\uff0c\u898b\u76f4\u3057\u3092\u3088\u308a\u6709\u52b9\u306b\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059<\/span>\u3002\u3053\u3053\u3067\u306f\u305d\u306e\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6b21\u5143\u306e\u8003\u3048\u65b9<\/h3>\n\n\n\n<p>\u6570\u5b66\u3067\u306f\u3042\u307e\u308a\u610f\u8b58\u3057\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\uff0c\u7269\u7406\u3067\u306f1\u30641\u3064\u306e\u6587\u5b57\u304c\u5358\u4f4d\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u3057\u3066\uff0c<span class=\"st-mymarker-s\">\u5358\u4f4d\uff08\u6b21\u5143\uff09\u304c\u7570\u306a\u308b\u3082\u306e\u540c\u58eb\u3092\u6bd4\u8f03\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093<\/span>\u3002<\/p>\n\n\n\n<p>\u3064\u307e\u308a\uff0c\u300c$=$\u300d\u3084\u300c$&lt;$\u300d\uff0c\u300c$&gt;$\u300d\u306b\u3088\u3063\u3066\u3064\u306a\u304c\u308c\u3066\u3044\u308b\u5f0f\u306e\u53f3\u8fba\uff0c\u5de6\u8fba\u3067\u306f\u5fc5\u305a\u5358\u4f4d\u304c\u540c\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\uff0c\u6b21\u5143\u306e\u7570\u306a\u308b\u3082\u306e\u540c\u58eb\u3092\u8db3\u3057\u305f\u308a\u5f15\u3044\u305f\u308a\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u305f\u3068\u3048\u3070\uff0c\u91cd\u529b\u3068\u5f3e\u6027\u529b\u306e\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f $mg=kx$ \u306f\uff0c\u53f3\u8fba\u3082\u5de6\u8fba\u3082\u5358\u4f4d\u304c $\\N$ \u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<p>\u4eee\u306b $x=mg$ \u306e\u3088\u3046\u306a\u5f0f\u304c\u51fa\u3066\u304d\u305f\u3089\uff0c$\\m=\\N$ \u3068\u306a\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u308b\u3053\u3068\u304b\u3089\uff0c\u77ac\u6642\u306b\u9593\u9055\u3063\u3066\u3044\u308b\u3068\u6c17\u4ed8\u3051\u308b\u308f\u3051\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>\u5f0f\u306e\u300c\u898b\u305f\u76ee\u300d\u304b\u3089\u3057\u3066\u3082\u3046\u9055\u548c\u611f\u304c\u3042\u308a\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>\u3053\u3046\u3057\u305f\u300c\u5358\u4f4d\uff08\u6b21\u5143\uff09\u300d\u3092\u5229\u7528\u3057\u305f\u7b54\u3048\u306e\u30c1\u30a7\u30c3\u30af\u306e\u65b9\u6cd5\u3092<span class=\"st-mymarker-s\">\u300c\u6b21\u5143\u30c1\u30a7\u30c3\u30af\u300d<\/span>\u306a\u3093\u3066\u547c\u3093\u3060\u308a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7c21\u5358\u306a\u4f8b\u2460<\/h3>\n\n\n\n<p>\u305d\u308c\u3067\u306f\u3053\u308c\u307e\u3067\u306e\u8a71\u3092\u8e0f\u307e\u3048\u3066\uff0c\u6b21\u5143\u30c1\u30a7\u30c3\u30af\u306b\u3088\u3063\u3066\u7b54\u3048\u306e\u78ba\u8a8d\u3092\u3059\u308b\u7df4\u7fd2\u3092\u3057\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 \u2460<\/span><\/p><div class=\"free-inbox\">\n<p>\u5730\u9762\u304b\u3089\u6e2c\u3063\u3066 $\\theta$ \u306e\u65b9\u5411\u306b\u521d\u901f\u5ea6 $v_0$ \u3067\u7269\u4f53\u3092\u6295\u3052\u4e0a\u3052\u308b\u3002\u91cd\u529b\u52a0\u901f\u5ea6\u306e\u5927\u304d\u3055\u3092 $g$ \u3068\u3057\u3066\uff0c\u6c34\u5e73\u5230\u9054\u8ddd\u96e2\u3092\u6c42\u3081\u308b\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-flow wp-block-group-is-layout-flow\">\n<p>\u307e\u305a\u306f\u925b\u76f4\u65b9\u5411\u306e\u904b\u52d5\u306b\u6ce8\u76ee\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u521d\u901f\u5ea6\u306f $v_0\\sin\\theta$ \u306a\u306e\u3067\u6700\u9ad8\u70b9\u307e\u3067\u306e\u6642\u9593\u306f $\\Bun{v_0\\sin\\theta}{g}$ \u3067\u3042\u308a\uff0c\u843d\u4e0b\u3059\u308b\u307e\u3067\u306e\u6642\u9593\u306f\u305d\u306e $2$\u500d\u306e $\\bun{2v_0\\sin\\theta}{g}$ \u3067\u3042\u308b\u3002<\/p>\n\n\n\n<p>\u7d9a\u3044\u3066\u6c34\u5e73\u65b9\u5411\u306e\u904b\u52d5\u306b\u6ce8\u76ee\u3059\u308b\u3002\u6c34\u5e73\u65b9\u5411\u306b\u306f $v_0\\cos\\theta$ \u3067\u7b49\u901f\u5ea6\u904b\u52d5\u3092\u3059\u308b\u306e\u3067\uff0c\u6c42\u3081\u308b\u8ddd\u96e2\u306f\uff0c<br>$$\\bun{2v_0\\sin\\theta}{g}\\times v_0\\cos\\theta=\\bun{2v_0\\sin\\theta\\cos\\theta}{g}$$<\/p>\n<\/div><\/div>\n\n\n\n<p>\u3055\u3066\uff0c\u6c42\u3081\u305f\u5024\u306e\u5206\u5b50\u306f $2v_0\\sin\\theta\\cos\\theta$ \u3067\u3059\u304b\u3089\uff0c\u5358\u4f4d\u306f $\\ms$ \u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4e00\u65b9\uff0c\u5206\u6bcd\u306f\u91cd\u529b\u52a0\u901f\u5ea6 $g$ \u3067\u3059\u306e\u3067\uff0c\u5358\u4f4d\u306f $\\mss$ \u3067\u3059\u3002\u3059\u308b\u3068\uff0c\u5206\u6570\u5168\u4f53\u3067\u306e\u5358\u4f4d\u306f\uff0c<\/p>\n\n\n\n<p>$$\\bun{\\ms}{\\mss}=\\s$$\u3068\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6c42\u3081\u3066\u3044\u308b\u306e\u306f\u8ddd\u96e2\u306e\u306f\u305a\u3067\u3059\u304b\u3089\uff0c\u5358\u4f4d\u306f $\\m$ \u306b\u306a\u3089\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u306e\u3067\uff0c\u300c\u3069\u3053\u304b\u3067\u8a08\u7b97\u30df\u30b9\u3092\u3057\u3066\u3044\u308b\u306a\u2026\u300d\u3068\u3044\u3046\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6b21\u5143\u30c1\u30a7\u30c3\u30af\u306e\u9650\u754c<\/h3>\n\n\n\n<p>\u305d\u308c\u3067\u306f\uff0c<\/p>\n\n\n\n<p>$$\\bun{2v_0\\sin\\theta}{g}\\times v_0\\cos\\theta=\\bun{2v_0\\!^2\\tan\\theta}{g}$$\u3068\u3044\u3046\u4e09\u89d2\u95a2\u6570\u306e\u8a08\u7b97\u30df\u30b9\u3092\u3057\u3066\u3057\u307e\u3063\u305f\u5834\u5408\u306f\u3069\u3046\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n\n\n\n<p>\u4e09\u89d2\u95a2\u6570\u81ea\u4f53\u306f\u6570\u5024\u3068\u540c\u3058\u304f\uff0c\u6b21\u5143\u306e\u306a\u3044\u7121\u6b21\u5143\u91cf\u3067\u3059\u306e\u3067\uff0c\u6b21\u5143\u30c1\u30a7\u30c3\u30af\u306b\u3088\u3063\u3066\u30df\u30b9\u3092\u767a\u898b\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<div style=\"height:5px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u30df\u30b9\u3092\u767a\u898b\u3059\u308b\u305f\u3081\u306b\u306f\u4e0a\u306b\u7d39\u4ecb\u3057\u305f\u300c\u6975\u7aef\u306a\u5834\u5408\u3092\u8003\u3048\u308b\u300d\u3068\u3044\u3046\u624b\u6cd5\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4e0a\u306e\u653e\u7269\u904b\u52d5\u306e\u4f8b\u3067\u3042\u308c\u3070\uff0c\u6b21\u306e\u3088\u3046\u306a\u6975\u7aef\u306a\u72b6\u6cc1\u3092\u8003\u3048\u308b\u3068\u3088\u3044\u3067\u3057\u3087\u3046\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>\u6975\u7aef\u306a\u72b6\u6cc1\u3092\u30c1\u30a7\u30c3\u30af<\/p><div class=\"st-in-mybox\">\n<ul id=\"block-2aa13e41-506a-43c8-851b-87a1c0ce2912\" class=\"is-style-st-no wp-block-list\"><li>$v_0=0$ \u306a\u3089 $L=0$\uff08\u305d\u3082\u305d\u3082\u6295\u3052\u3066\u306a\u3044\uff09<\/li><li>$\\theta=0$ \u306a\u3089 $L=0$\uff08\u305d\u306e\u5834\u306b\u3059\u3050\u843d\u3061\u3066\u3057\u307e\u3046\uff09<\/li><li>$\\theta=\\bun{\\pi}{2}$ \u306a\u3089 $L=0$\uff08\u771f\u4e0a\u306b\u6295\u3052\u3066\u3044\u308b\u306e\u3067\u305d\u306e\u5834\u306b\u623b\u3063\u3066\u304f\u308b\uff09<\/li><\/ul>\n<\/div><\/div>\n\n\n\n<p>$\\Bun{2v_0\\!^2\\tan\\theta}{g}$ \u3068\u3044\u3046\u7b54\u3048\u3060\u3068\uff0c$\\theta=\\bun{\\pi}{2}$ \u306e\u3068\u304d\u306b $L=0$ \u3068\u306a\u3089\u3044\u305f\u3081\uff0c\u30df\u30b9\u3092\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7c21\u5358\u306a\u4f8b\u2461<\/h3>\n\n\n\n<p>\u6b21\u5143\u30c1\u30a7\u30c3\u30af\u306b\u3064\u3044\u3066\uff0c\u3082\u30461\u3064\u4f8b\u3092\u78ba\u8a8d\u3057\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 \u2461<\/span><\/p><div class=\"free-inbox\">\n<p>\u30de\u30fc\u30af\u5f0f\u30c6\u30b9\u30c8\u306a\u3069\u306e\u7b54\u3048\u3092\u9078\u629e\u3059\u308b\u30bf\u30a4\u30d7\u306e\u554f\u984c\u3067\uff0c$l-\\bun{mv^2}{k}$ \u304c\u9078\u629e\u80a2\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u3002<\/p>\n<\/div><\/div>\n\n\n\n<p>\u3053\u306e\u5834\u5408\uff0c\u6587\u5b571\u30641\u3064\u306b\u6ce8\u76ee\u3057\u3066\u5358\u4f4d\u3092\u8a08\u7b97\u3057\u3066\u3044\u3063\u3066\u3082\u3088\u3044\u306e\u3067\u3059\u304c\uff0c\u591a\u304f\u306e\u6587\u5b57\u304c\u767b\u5834\u3057\u3066\u3044\u308b\u4e0a\u306b\u3070\u306d\u5b9a\u6570\u307e\u3067\u542b\u307e\u308c\u3066\u3044\u308b\u306e\u3067\u3061\u3087\u3063\u3068\u8907\u96d1\u3067\u3059\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>1\u30641\u3064\u5358\u4f4d\u3092\u8003\u3048\u3066\u8a08\u7b97\u3057\u3066\u3044\u305f\u3089\u65e5\u304c\u66ae\u308c\u3066\u3057\u307e\u3044\u305d\u3046\u3067\u3059\u2026<\/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>\u305d\u3053\u3067\uff0c<span class=\"st-mymarker-s\">\u300c\u6587\u5b57\u306e\u307e\u3068\u307e\u308a\u3067\u5358\u4f4d\u3092\u8003\u3048\u308b\u300d<\/span>\u3068\u3044\u3046\u65b9\u6cd5\u3092\u3068\u3063\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u5206\u6570\u306e\u5206\u5b50\u306b\u3042\u308b $mv^2$ \u3067\u3059\u304c\uff0c\u3053\u308c\u306f\u904b\u52d5\u30a8\u30cd\u30eb\u30ae\u30fc $\\Bun12mv^2$ \u3068\u540c\u3058\u5358\u4f4d\u306b\u306a\u308b\u306f\u305a\u3067\u3059\u306e\u3067\uff0c$\\punit{J}$ \u3068\u306a\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>\u3053\u308c\u3067\u3082\u307e\u3060\u308f\u304b\u308a\u3065\u3089\u3044\u306e\u3067\uff0c\u5225\u306e\u3082\u306e\u306b\u7f6e\u304d\u63db\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u5206\u6bcd\u306b $k$ \u304c\u3042\u308b\u306e\u3067\uff0c\u5f3e\u6027\u529b\u306e\u4f4d\u7f6e\u30a8\u30cd\u30eb\u30ae\u30fc $\\bun12kx^2$ \u3092\u8003\u3048\u308b\u3068\u308f\u304b\u308a\u3084\u3059\u3044\u3067\u3059\u306d\u3002<\/p>\n\n\n\n<p>$\\bun12mv^2$ \u3068 $\\bun12kx^2$ \u306f\u3044\u305a\u308c\u3082\u5358\u4f4d\u304c\u540c\u3058\u304f $\\punit{J}$ \u3067\u3059\u304b\u3089\uff0c\u5206\u6bcd\u306e $mv^2$ \u3092 $kx^2$ \u3067\u7f6e\u304d\u63db\u3048\u3066\u3057\u307e\u3048\u3070\uff0c<\/p>\n\n\n\n<p>$$l-\\bun{kx^2}{k}=l-x^2$$\u3068\u5909\u5f62\u3067\u304d\u307e\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>\u77e5\u3063\u3066\u3044\u308b\u7269\u7406\u91cf\u3068\u7d50\u3073\u3064\u3051\u3066\uff0c\u307e\u3068\u307e\u308a\u3067\u8003\u3048\u308b\u306e\u304c\u30dd\u30a4\u30f3\u30c8\u306a\u3093\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>$l$ \u3082 $x$ \u3082\u9577\u3055\u3092\u8868\u3057\u3066\u304a\u308a\uff0c\u5358\u4f4d\u306f $\\m$ \u3067\u3059\u304b\u3089\uff0c$l-x^2$ \u3068\u3044\u3046\u5f0f\u306f\u300c$\\punit{m}-\\punit{m^2}$\u300d\u3068\u3044\u3046\u5f62\u306b\u306a\u3063\u3066\u3057\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b21\u5143\u304c\u7570\u306a\u308b\u3082\u306e\u540c\u58eb\u306f\u8db3\u3057\u5f15\u304d\u3067\u304d\u306a\u3044\u306e\u3067\uff0c\u305d\u3082\u305d\u3082\u3053\u306e\u9078\u629e\u80a2\u81ea\u4f53\u304c\u304a\u304b\u3057\u306a\u3053\u3068\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><span class=\"st-mymarker-s-b\">\u554f\u984c\u304c\u89e3\u3051\u306a\u304b\u3063\u305f\u3068\u3057\u3066\u3082\uff0c\u3053\u306e\u3088\u3046\u306b\u6b21\u5143\u3092\u8003\u3048\u308b\u3060\u3051\u3067\u305d\u306e\u9078\u629e\u80a2\u304c\u7d76\u5bfe\u306b\u7b54\u3048\u306b\u306a\u3089\u306a\u3044\u3053\u3068\u304c\u308f\u304b\u3063\u3066\u3057\u307e\u3046<\/span>\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5171\u901a\u30c6\u30b9\u30c8\u306f\u3053\u3046\u3057\u305f\u9078\u629e\u5f62\u5f0f\u306e\u51fa\u984c\u3067\u3059\u306e\u3067\uff0c\u3053\u306e\u3088\u3046\u306a\u6b21\u5143\u30c1\u30a7\u30c3\u30af\u3060\u3051\u3067\u9078\u629e\u80a2\u3092\u7d5e\u308b\u3053\u3068\u304c\u3067\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, 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