{"id":4567,"date":"2023-05-29T19:12:04","date_gmt":"2023-05-29T10:12:04","guid":{"rendered":"https:\/\/torisetudy.com\/?p=4567"},"modified":"2025-04-03T00:54:32","modified_gmt":"2025-04-02T15:54:32","slug":"%e9%9d%9e%e7%ad%89%e9%80%9f%e5%86%86%e9%81%8b%e5%8b%95","status":"publish","type":"post","link":"https:\/\/torisetudy.com\/?p=4567","title":{"rendered":"\u975e\u7b49\u901f\u5186\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> \u975e\u7b49\u901f\u5186\u904b\u52d5<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_1\">2<\/span> \u89e3\u6790\u624b\u9806<\/a><\/li><\/ul><\/div>\n<h2 class=\"wp-block-heading\"><span id=\"i\">\u975e\u7b49\u901f\u5186\u904b\u52d5<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u975e\u7b49\u901f\u5186\u904b\u52d5\u3068\u306f<\/h3>\n\n\n\n<p>\u3053\u3053\u307e\u3067\u306f\u7b49\u901f\u5186\u904b\u52d5\u306b\u3064\u3044\u3066\u8003\u3048\u3066\u304d\u307e\u3057\u305f\u304c\uff0c\u901f\u3055\u304c\u5909\u5316\u3059\u308b\u5186\u904b\u52d5\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"186\" height=\"169\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406508.svg\" alt=\"\" class=\"wp-image-4528\"\/><noscript><img decoding=\"async\" width=\"186\" height=\"169\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406508.svg\" alt=\"\" class=\"wp-image-4528\"\/><\/noscript><\/figure>\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>\u632f\u308a\u5b50\u904b\u52d5\u304c\u307e\u3055\u306b\u305d\u3046\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>\u5de6\u5074\u306e\u7aef\u70b9\u3078\u3068\u7269\u4f53\u3092\u6301\u3061\u4e0a\u3052\u3066\uff0c\u624b\u3092\u96e2\u3057\u305f\u5834\u5408\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u624b\u3092\u96e2\u3057\u305f\u76f4\u5f8c\u306f\u901f\u3055 $0$ \u3067\u3059\u3002\u6700\u4e0b\u70b9\uff08\u4f4d\u7f6e\u30a8\u30cd\u30eb\u30ae\u30fc\u6700\u5c0f\uff01\uff09\u306b\u306a\u308b\u3068\uff0c\u904b\u52d5\u30a8\u30cd\u30eb\u30ae\u30fc\u304c\u6700\u5927\u3068\u306a\u308b\u305f\u3081\u901f\u3055\u3082\u6700\u5927\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u307e\u307e\u53cd\u5bfe\u5074\u306e\u7aef\u70b9\u306b\u9054\u3057\u307e\u3059\u304c\uff0c\u6298\u308a\u8fd4\u3057\u5730\u70b9\u3067\u3059\u306e\u3067\u518d\u3073\u901f\u3055\u304c $0$ \u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u5f80\u5fa9\u904b\u52d5\u3092\u7e70\u308a\u8fd4\u3057\u307e\u3059\u304c\uff0c\u632f\u308a\u5b50\u904b\u52d5\u306e\u8ecc\u8de1\u306f\u5186\u306e\u4e00\u90e8\u3067\u3059\u306e\u3067\uff0c\u3084\u306f\u308a\u300c\u5186\u904b\u52d5\u300d\u306b\u306a\u308b\u306e\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>\u3053\u306e\u3088\u3046\u306b\uff0c\u5186\u8ecc\u9053\uff08\u306e\u4e00\u90e8\uff09\u3092\u63cf\u304f\u3082\u306e\u306e\uff0c\u901f\u3055\u304c\u5909\u5316\u3059\u308b\u904b\u52d5\u3092<span class=\"st-mymarker-s\">\u975e\u7b49\u901f\u5186\u904b\u52d5<\/span>\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-2\">\u89e3\u6790\u624b\u9806<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n\n\n\n<p>\u3053\u306e\u975e\u7b49\u901f\u5186\u904b\u52d5\u306b\u3064\u3044\u3066\u3082\uff0c\u7b49\u901f\u5186\u904b\u52d5\u3068\u540c\u69d8\u306b<span class=\"st-mymarker-s-b\">\u300c\u5411\u5fc3\u65b9\u5411\u306e\u904b\u52d5\u65b9\u7a0b\u5f0f\u300d<\/span>\u3092\u7acb\u5f0f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5909\u5316\u3059\u308b\u901f\u3055\u306f<span class=\"st-mymarker-s-b\">\u300c\u30a8\u30cd\u30eb\u30ae\u30fc\u4fdd\u5b58\u5247\u300d<\/span>\u304b\u3089\u8003\u3048\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u306e\u3067\uff0c\u975e\u7b49\u901f\u5186\u904b\u52d5\u3067\u306f\u3053\u306e2\u5f0f\u3092\u9023\u7acb\u3059\u308b\u306e\u304c\u5b9a\u77f3\u3067\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>\u975e\u7b49\u901f\u5186\u904b\u52d5\u3078\u306e\u30a2\u30d7\u30ed\u30fc\u30c1<\/p><div class=\"st-in-mybox\">\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u4ee5\u4e0b\u306e2\u5f0f\u3092\u9023\u7acb\u3057\u3066\u89e3\u304f\u3002<\/p>\n\n\n\n<ul class=\"is-style-st-no-border wp-block-list\"><li><strong>\u5411\u5fc3\u65b9\u5411\u306e\u904b\u52d5\u65b9\u7a0b\u5f0f<\/strong><\/li><li><strong>\u30a8\u30cd\u30eb\u30ae\u30fc\u4fdd\u5b58\u5247<\/strong><\/li><\/ul>\n<\/div><\/div>\n\n\n\n<p>\u3068\u306b\u304b\u304f\u975e\u7b49\u901f\u5186\u904b\u52d5\u3092\u898b\u305f\u3089\u3053\u306e2\u5f0f\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>\u982d\u304c\u534a\u5206\uff08\u306a\u3093\u306a\u3089\u5168\u90e8\uff09\u5bdd\u3066\u3044\u3066\u3082\u6761\u4ef6\u53cd\u5c04\u7684\u306b\u3053\u306e2\u5f0f\u306f\u7acb\u5f0f\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p>\u4f8b\u984c\u3092\u7528\u3044\u3066\uff0c\u8003\u3048\u65b9\uff0c\u89e3\u304d\u65b9\u3092\u78ba\u8a8d\u3057\u3066\u304a\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>\u6c34\u5e73\u9762\u306b\u6ed1\u3089\u304b\u306b\u63a5\u7d9a\u3055\u308c\u305f\uff0c\u534a\u5f84\u304c $r$ \u306e\u534a\u5186\u5f62\u3092\u3057\u305f\u58c1\u304c\u3042\u308b\u3002\u6c34\u5e73\u9762\u3067\u306e\u901f\u3055\u304c $v_0$ \u3067\u3042\u308b\u5c0f\u7403\u304c\u3053\u306e\u58c1\u3092\u767b\u3063\u3066\u3044\u304f\u5834\u5408\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<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"146\" height=\"156\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406509.svg\" alt=\"\" class=\"wp-image-4529\"\/><noscript><img decoding=\"async\" width=\"146\" height=\"156\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406509.svg\" alt=\"\" class=\"wp-image-4529\"\/><\/noscript><\/figure>\n\n\n\n<p class=\"setumonnkakko\">\u5c0f\u7403\u304c\u5186\u904b\u52d5\u3092\u59cb\u3081\u305f\u76f4\u5f8c\uff0c\u534a\u5186\u5f62\u306e\u58c1\u306e\u6700\u4e0b\u70b9$\\rmP$\u306b\u304a\u3044\u3066\u53d7\u3051\u308b\u5782\u76f4\u6297\u529b\u306e\u5927\u304d\u3055\u3092\u6c42\u3081\u3088\u3002<\/p>\n\n\n\n<p class=\"setumonnkakko\">\u6700\u4e0b\u70b9\u304b\u3089\u6e2c\u3063\u305f\u89d2\u5ea6\u304c $\\theta$ \u3067\u3042\u308b\u3088\u3046\u306a\u70b9$\\rmQ$\u306b\u304a\u3044\u3066\uff0c\u5c0f\u7403\u304c\u53d7\u3051\u308b\u5782\u76f4\u6297\u529b\u306e\u5927\u304d\u3055\u3092\u6c42\u3081\u3088\u3002<\/p>\n\n\n\n<p class=\"setumonnkakko\">\u5c0f\u7403\u304c\u6700\u9ad8\u70b9$\\rmR$\u307e\u3067\u58c1\u304b\u3089\u96e2\u308c\u305a\u306b\u904b\u52d5\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a $v_0$ \u306e\u6761\u4ef6\u3092\u6c42\u3081\u3088\u3002<\/p>\n<\/div><\/div>\n\n\n\n<p>\u898b\u308b\u304b\u3089\u306b\u975e\u7b49\u901f\u5186\u904b\u52d5\u306e\u8a71\u3092\u3057\u3066\u3044\u307e\u3059\u306e\u3067\uff0c\u300c\u5411\u5fc3\u65b9\u5411\u306e\u904b\u52d5\u65b9\u7a0b\u5f0f\u3068\u30a8\u30cd\u30eb\u30ae\u30fc\u4fdd\u5b58\u5247\u3060\uff01\u300d\u3068\u5f37\u304f\u610f\u8b58\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(1)\u306b\u3064\u3044\u3066<\/h3>\n\n\n\n<p>\u9593\u9055\u3063\u3066\u3082\uff0c\u925b\u76f4\u65b9\u5411\u306e\u529b\u306e\u3064\u308a\u5408\u3044\u306e\u5f0f\u3092\u7acb\u3066\u306a\u3044\u3067\u304f\u3060\u3055\u3044\uff01<\/p>\n\n\n\n<p>\u5c0f\u7403\u306f\u3059\u3067\u306b\u5186\u904b\u52d5\u3092\u306f\u3058\u3081\u3066\u3044\u307e\u3059\u306e\u3067\uff0c\u5411\u5fc3\u65b9\u5411\u306e\u904b\u52d5\u65b9\u7a0b\u5f0f\u3092\u7acb\u5f0f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"134\" height=\"125\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406510.svg\" alt=\"\" class=\"wp-image-4530\"\/><noscript><img decoding=\"async\" width=\"134\" height=\"125\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406510.svg\" alt=\"\" class=\"wp-image-4530\"\/><\/noscript><\/figure>\n\n\n\n<p>\u6c42\u3081\u308b\u5782\u76f4\u6297\u529b\u306e\u5927\u304d\u3055\u3092 $N_0$ \u3068\u3059\u308b\u3068\uff0c\u529b\u306e\u4f5c\u7528\u56f3\u306f\u4e0a\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5411\u5fc3\u65b9\u5411\u306e\u904b\u52d5\u65b9\u7a0b\u5f0f\u3088\u308a\uff0c<\/p>\n\n\n\n<p>$$m\\bun{v_0\\!^2}{r}=N_0-mg$$\u3068\u7acb\u5f0f\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3092\u6574\u7406\u3059\u308b\u3053\u3068\u3067\uff0c<\/p>\n\n\n\n<p>$$N_0=m\\bun{v_0\\!^2}{r}+mg$$\u3068\u3057\u3066\u7b54\u3048\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(2)\u306b\u3064\u3044\u3066<\/h3>\n\n\n\n<p>\u70b9$\\rmQ$\u3067\u306e\u5c0f\u7403\u306e\u901f\u3055\u3092 $v$\uff0c\u6c42\u3081\u308b\u5782\u76f4\u6297\u529b\u306e\u5927\u304d\u3055\u3092 $N$ \u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"140\" height=\"133\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406511.svg\" alt=\"\" class=\"wp-image-4531\"\/><noscript><img decoding=\"async\" width=\"140\" height=\"133\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u7269\u7406511.svg\" alt=\"\" class=\"wp-image-4531\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3053\u306e\u3068\u304d\uff0c\u529b\u306e\u4f5c\u7528\u56f3\u306f\u4e0a\u306e\u901a\u308a\u3067\u3059\u304c\uff0c\u3053\u306e\u6642\u70b9\u3067\u529b\u3092\u300c\u5411\u5fc3\u65b9\u5411\u300d\u3068\u300c\u63a5\u7dda\u65b9\u5411\u300d\u306b\u5206\u89e3\u3057\u3066\u8003\u3048\u3066\u304a\u304f\u3068\u308f\u304b\u308a\u3084\u3059\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u5411\u5fc3\u65b9\u5411\u306e\u904b\u52d5\u65b9\u7a0b\u5f0f\u304b\u3089\uff0c<\/p>\n\n\n\n<p>$$m\\bun{v^2}{r}=N-mg\\cos\\theta\\stext{\\quad\u2026\u2026\\ \u2460}$$\u3068\u7acb\u5f0f\u3067\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\u4e0b\u70b9\u3068\u306e\u9ad8\u3055\u306e\u5dee\u306f\uff0c$r(1-\\cos\\theta)$ \u3067\u3059\u306e\u3067\uff0c\u30a8\u30cd\u30eb\u30ae\u30fc\u4fdd\u5b58\u5247\u3088\u308a\uff0c<\/p>\n\n\n\n<p>$$\\bun12mv_0\\!^2=\\bun12mv^2+mgr(1-\\cos\\theta)\\stext{\\quad\u2026\u2026\\ \u2461}$$\u304c\u6210\u308a\u7acb\u3061\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>\u2460\uff0c\u2461 \u3092\u9023\u7acb\u3059\u308b\u3053\u3068\u3067\uff0c<\/p>\n\n\n\n<p>$$N=m\\bun{v_0\\!^2}{r}-mg(2-3\\cos\\theta)$$\u3068\u3057\u3066\u7b54\u3048\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b54\u3048\u306e\u78ba\u8a8d<\/h3>\n\n\n\n<p>\u5f0f\u5909\u5f62\u306b\u81ea\u4fe1\u304c\u6301\u3066\u306a\u3051\u308c\u3070\uff0c$\\theta=0$ \u3092\u4ee3\u5165\u3057\u307e\u3057\u3087\u3046\uff01<\/p>\n\n\n\n<p>$\\theta=0$ \u3067\u5c0f\u7403\u306e\u4f4d\u7f6e\u306f\u70b9$\\rmP$\u3067\u3059\u306e\u3067\uff0c(1) \u3068\u5168\u304f\u540c\u3058\u5024\u306b\u306a\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u5b9f\u969b\uff0c$\\theta=0$ \u3092 $N$ \u306b\u4ee3\u5165\u3059\u308b\u3068\u78ba\u304b\u306b\uff0c<\/p>\n\n\n\n<p>$$N=m\\bun{v_0\\!^2}{r}+mg=N_0$$\u3068\u306a\u308a\u307e\u3059\u306d\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\u306e\u5024\u304c $N_0$ \u3068\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\uff0c\u8a08\u7b97\u304c\u9593\u9055\u3063\u3066\u3044\u305f\u3053\u3068\u306b\u6c17\u4ed8\u3051\u307e\u3059\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">(3)\u306b\u3064\u3044\u3066<\/h3>\n\n\n\n<p>\u300c\u58c1\u304b\u3089\u96e2\u308c\u306a\u3044\u300d\u3068\u3044\u3046\u6761\u4ef6\u3092\u8003\u3048\u308b\u554f\u984c\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u300c\u96e2\u308c\u308b\u30fb\u96e2\u308c\u306a\u3044\u3092\u8003\u3048\u308b\u554f\u984c\u300d\u3067\u3059\u306d\u3002\u5fa9\u7fd2\u306b\u306a\u308a\u307e\u3059\u304c\uff0c\u78ba\u8a8d\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>\u96e2\u308c\u308b\u30fb\u96e2\u308c\u306a\u3044\u554f\u984c<\/p><div class=\"st-in-mybox\">\n<ul class=\"is-style-st-no-border wp-block-list\"><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><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><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><\/ul>\n<\/div><\/div>\n\n\n\n<p>\u58c1\u304b\u3089\u96e2\u308c\u306a\u3044\u3082\u306e\u3068\u3057\u3066 $\\theta$ \u306e\u4f4d\u7f6e\u3067\u5186\u904b\u52d5\u3092\u8003\u3048\u305f\u306e\u304c (2) \u3067\u3057\u305f\u3002<\/p>\n\n\n\n<p>(2) \u3067\u6c42\u3081\u305f $N$ \u304c $0\\leqq\\theta\\leqq\\pi$ \u306e\u7bc4\u56f2\u3067 $N>0$ \u3092\u6e80\u305f\u3057\u3066\u3044\u308c\u3070\u5c0f\u7403\u306f\u58c1\u304b\u3089\u96e2\u308c\u305a\u306b\u70b9$\\rmQ$\u306b\u305f\u3069\u308a\u7740\u3051\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p>$$N=m\\bun{v_0\\!^2}{r}-mg(2-3\\cos\\theta)$$\u306f\uff0c$\\theta$ \u306b\u3064\u3044\u3066\u5358\u8abf\u6e1b\u5c11\u3057\uff0c$\\theta=\\pi$ \u3067\u6700\u5c0f\u5024\u3092\u3068\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3088\u3063\u3066\uff0c$N$ \u306f\u70b9$\\rmQ$\u3067\u6700\u5c0f\u3068\u306a\u308a\uff0c\u305d\u306e\u6700\u5c0f\u5024$N_{\\rmQ}$\u306f\uff0c<\/p>\n\n\n\n<p>$$N_{\\rmQ}=m\\bun{v_0\\!^2}{r}-5mg$$\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>$N_{\\rmQ}>0$ \u3067\u3042\u308c\u3070\uff0c$0\\leqq\\theta\\leqq\\pi$ \u306e\u7bc4\u56f2\u3067\u5e38\u306b $N>0$ \u3067\u3042\u308b\u3053\u3068\u304c\u3044\u3048\u307e\u3059\u306e\u3067\uff0c\u6c42\u3081\u308b\u6761\u4ef6\u306f $N_{\\rmQ}>0$ \u3067\u3059\uff01<\/p>\n\n\n\n<p>\u3053\u308c\u3092 $v_0$ \u306b\u3064\u3044\u3066\u6574\u7406\u3059\u308b\u3068\uff0c<\/p>\n\n\n\n<p>$$v_0>\\sqrt{5gr}$$\u3068\u3057\u3066\u7b54\u3048\u304c\u5f97\u3089\u308c\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>(3)\u306f\u96e3\u3057\u3044\u3067\u3059\u304c\u983b\u51fa\u306e\u5185\u5bb9\u3067\u3059\u306e\u3067\uff0c\u3057\u3063\u304b\u308a\u3068\u81ea\u5206\u306e\u8a00\u8449\u3067\u8aac\u660e\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u6b211 \u975e\u7b49\u901f\u5186\u904b\u52d52 \u89e3\u6790\u624b\u9806 \u975e\u7b49\u901f\u5186\u904b\u52d5 \u975e\u7b49\u901f\u5186\u904b\u52d5\u3068\u306f \u3053\u3053\u307e\u3067\u306f\u7b49\u901f\u5186\u904b\u52d5\u306b\u3064\u3044\u3066\u8003\u3048\u3066\u304d\u307e\u3057\u305f\u304c\uff0c\u901f\u3055\u304c\u5909\u5316\u3059\u308b\u5186\u904b\u52d5\u3082\u3042\u308a\u307e\u3059\u3002 \u5de6\u5074\u306e\u7aef\u70b9\u3078\u3068\u7269\u4f53\u3092\u6301\u3061\u4e0a\u3052\u3066\uff0c\u624b\u3092\u96e2\u3057\u305f\u5834\u5408\u3092\u8003\u3048\u3066 &#8230; <\/p>\n","protected":false},"author":1,"featured_media":4565,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,39],"tags":[],"class_list":["post-4567","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dynamics","category-39"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/4567"}],"collection":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4567"}],"version-history":[{"count":12,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/4567\/revisions"}],"predecessor-version":[{"id":4579,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/4567\/revisions\/4579"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/media\/4565"}],"wp:attachment":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4567"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4567"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4567"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}