{"id":966,"date":"2026-07-14T00:15:57","date_gmt":"2026-07-13T15:15:57","guid":{"rendered":"https:\/\/japper-tapchka.blog\/Diary\/?p=966"},"modified":"2026-09-20T00:50:31","modified_gmt":"2026-09-19T15:50:31","slug":"tokyo-tech-2026-physics-1","status":"publish","type":"post","link":"https:\/\/japper-tapchka.blog\/Diary\/tokyo-tech-2026-physics-1\/","title":{"rendered":"\u30102026\u6771\u5de5\u5927\u7269\u7406 \u7b2c1\u554f\u3011\u529b\u5b66\u3092\u9ad8\u6821\u7269\u7406\u3067\u5fb9\u5e95\u89e3\u8aac\uff5c\u56f3\u89e3\u30fb\u30a4\u30e1\u30fc\u30b8\u4ed8\u304d"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u4eca\u56de\u306f\u6771\u4eac\u79d1\u5b66\u5927\u5b66(\u65e7\u6771\u5de5\u5927)2026\u5e74\u5ea6\u5165\u8a66\u306e\u7269\u7406\u7b2c1\u554f\u306b\u3064\u3044\u3066\u3001\u7d30\u304b\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\uff01\u554f\u984c\u306f\u89e3\u8aac\u306e\u90fd\u5408\u4e0a\u3001\u90e8\u5206\u7684\u306b\u63b2\u8f09\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u30d5\u30ebPDF\u304c\u6b32\u3057\u3044\u5834\u5408\u306f<a href=\"https:\/\/admissions.isct.ac.jp\/ja\/013\/undergraduate\/examination-questions\">\u5927\u5b66\u306e\u30db\u30fc\u30e0\u30da\u30fc\u30b8<\/a>\u3084\u4e88\u5099\u6821\u306e\u30b5\u30a4\u30c8\u304b\u3089<a href=\"https:\/\/admissions.isct.ac.jp\/plugins\/cms\/component_download_file.php?type=1&amp;pageId=3119&amp;contentsId=&amp;contentsDataId=&amp;prevId=&amp;key=22602f91ac41a09652b08666d7cfb6ab.pdf&amp;fileName=02_R8%E7%89%A9%E7%90%86-%E5%95%8F%E9%A1%8C\" title=\"\">\u5165\u624b<\/a>\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/mark><\/p>\n\n\n\n<h1 class=\"wp-block-heading\">\u524d\u63d0<\/h1>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"789\" height=\"1024\" src=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/e4495dff55f6e590a0eabe57df5a05f5-789x1024.jpg\" alt=\"\" class=\"wp-image-967\" srcset=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/e4495dff55f6e590a0eabe57df5a05f5-789x1024.jpg 789w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/e4495dff55f6e590a0eabe57df5a05f5-231x300.jpg 231w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/e4495dff55f6e590a0eabe57df5a05f5-768x996.jpg 768w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/e4495dff55f6e590a0eabe57df5a05f5-1184x1536.jpg 1184w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/e4495dff55f6e590a0eabe57df5a05f5-1024x1328.jpg 1024w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/e4495dff55f6e590a0eabe57df5a05f5.jpg 1208w\" sizes=\"auto, (max-width: 789px) 100vw, 789px\" \/><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">\u7269\u4f53Q\u3092\u56fa\u5b9a\u3057\u3066\u3044\u308b\u6642\u306e\u904b\u52d5<\/h1>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"619\" src=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/ec5898ebe27b56024ef28cd795d1cf04-1024x619.png\" alt=\"\" class=\"wp-image-968\" srcset=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/ec5898ebe27b56024ef28cd795d1cf04-1024x619.png 1024w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/ec5898ebe27b56024ef28cd795d1cf04-300x181.png 300w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/ec5898ebe27b56024ef28cd795d1cf04-768x464.png 768w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/ec5898ebe27b56024ef28cd795d1cf04.png 1208w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">(a) \u6700\u3082\u8fd1\u3065\u3044\u305f\u6642\u306e\u901f\u3055<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u4fdd\u5b58\u529b\u306e\u307f\u4ed5\u4e8b\u3092\u3059\u308b\u305f\u3081\u3001\u529b\u5b66\u7684\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u8003\u3048\u307e\u3057\u3087\u3046\uff01\u7269\u4f53\u540c\u58eb\u306e\u8ddd\u96e2\u304c\u3070\u306d\u306e\u4f38\u3073\u3068\u540c\u5024\u306b\u306a\u3089\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\uff01\uff01\u26a0\ufe0f\u26a0\ufe0f<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{ \\frac{1}{2} mV_0^2 + \\frac{1}{2} k(h-l)^2 = \\frac{1}{2} k(2h-l)^2} $$\n$$ \\color{black}{ \\therefore V_0 = \\sqrt{ \\frac{k(3h-2l)h}{m} } } $$<script id=\"wp-hooks-js\" src=\"https:\/\/japper-tapchka.blog\/Diary\/wp-includes\/js\/dist\/hooks.min.js?ver=f0f188028580e8dc1255\"><\/script>\n<script id=\"wp-i18n-js\" src=\"https:\/\/japper-tapchka.blog\/Diary\/wp-includes\/js\/dist\/i18n.min.js?ver=1dfe7db3940c23ea9216\"><\/script>\n<script id=\"wp-i18n-js-after\">\nwp.i18n.setLocaleData( { 'text direction\\u0004ltr': [ 'ltr' ] } );\n\/\/# sourceURL=wp-i18n-js-after\n<\/script>\n<script  async id=\"mathjax-js\" src=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/mathjax\/2.7.7\/MathJax.js?config=TeX-MML-AM_CHTML\"><\/script>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">(b) \u7269\u4f53P\u306ex\u65b9\u5411\u306e\u529b<\/h2>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile\"><figure class=\"wp-block-media-text__media\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"600\" src=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1b.png\" alt=\"\" class=\"wp-image-1112 size-full\" srcset=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1b.png 600w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1b-300x300.png 300w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1b-150x150.png 150w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u5de6\u56f3\u306e\u3088\u3046\u306b\ud835\udf03\u3092\u304a\u304f\u3068\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{ \\cos \\theta = \\frac{x_P}{ \\sqrt{h^2+x_P^2} } } $$<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u5f3e\u6027\u529b\u306e\u5411\u304d\u306f\u5de6\u56f3\u306e\u3088\u3046\u306b\u306a\u308b\u305f\u3081\u3001x\u65b9\u5411\u306e\u6210\u5206\u306f\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{F_x = -k( \\sqrt{h^2+x_P^2} &#8211; l) \\cdot \\cos \\theta } $$\n$$ \\color{black}{ \\therefore F_x = -kx_P \\left ( 1 &#8211; \\frac{l}{ \\sqrt{h^2+x_P^2} } \\right ) } $$<\/div>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">(c) \u7269\u4f53P\u304c\u5358\u632f\u52d5\u3059\u308b\u6642\u306e\u5468\u671f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">(b)\u306b\u3001\u8fd1\u4f3c\u3092\u7528\u3044\u3066\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{|x_P| \\lt A \\lt \\lt h \u3088\u308a\u3001} $$\n$$ \\color{black}{ \\sqrt{h^2+x_P^2} = h \\sqrt{1 + \\left ( \\frac{x_P}{h} \\right )^2 } \\fallingdotseq h} $$\n$$ \\color{black}{ \\therefore F_x \\fallingdotseq -k \\left ( 1 &#8211; \\frac{l}{h} \\right ) x_P } $$<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u5358\u632f\u52d5\u306e\u6bd4\u4f8b\u5b9a\u6570\ud835\udc3e\u3092\u7528\u3044\u3066\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{K = k \\left ( 1 &#8211; \\frac{l}{h} \\right ) } $$\n$$ \\color{black}{T = 2 \\pi \\sqrt{ \\frac{m}{K} } = 2 \\pi \\sqrt{ \\frac{m}{k \\left ( 1 &#8211; \\frac{l}{h} \\right )} } } $$<\/div>\n\n\n\n<h1 class=\"wp-block-heading\">\u56fa\u5b9a\u3092\u5916\u3057\u3066\u3001\u30ec\u30fc\u30eb\u3092\u8fd1\u3065\u3051\u305f\u6642\u306e\u904b\u52d5<\/h1>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"911\" src=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/f41a66b889298f449bca40a835db8964-1024x911.png\" alt=\"\" class=\"wp-image-969\" srcset=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/f41a66b889298f449bca40a835db8964-1024x911.png 1024w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/f41a66b889298f449bca40a835db8964-300x267.png 300w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/f41a66b889298f449bca40a835db8964-768x683.png 768w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/f41a66b889298f449bca40a835db8964.png 1208w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">(d) \u7269\u4f53P, Q\u306e\u4f4d\u7f6e\u95a2\u4fc2\u304c\u9006\u306b\u306a\u308b\u6642\u306e\u521d\u671f\u4f4d\u7f6e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u7269\u4f53P, Q\u306f\u3068\u3082\u306b\u30b9\u30c8\u30c3\u30d1\u30fc\u304c\u306a\u3044\u305f\u3081\u3001\u5de6\u53f3\u5bfe\u79f0\u3067\u904b\u52d5\u3057\u307e\u3059\u3002\u5de6\u53f3\u306e\u4f4d\u7f6e\u95a2\u4fc2\u304c\u9006\u306b\u306a\u308b\u6642\u3001\ud835\udc65<sub>\ud835\udc43<\/sub>=\ud835\udc65<sub>\ud835\udc44<\/sub>=0\u306e\u6642\u306b\u901f\u3055\ud835\udc63&gt;0\u306b\u306a\u308a\u307e\u3059\u3002<\/mark><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1d_mov-1024x1024.gif\" alt=\"\" class=\"wp-image-1113\" srcset=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1d_mov-1024x1024.gif 1024w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1d_mov-300x300.gif 300w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1d_mov-150x150.gif 150w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1d_mov-768x768.gif 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{ \\frac{1}{2} k ( \\sqrt{h^2+4B^2} &#8211; l)^2 = \\frac{1}{2} mv^2 + \\frac{1}{2} mv^2 + \\frac{1}{2} k(h-l)^2 } $$\n$$ \\color{black}{ \\frac{1}{2} k ( \\sqrt{h^2+4B^2} &#8211; l)^2 \\gt \\frac{1}{2} k(h-l)^2 } $$<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u7269\u4f53P, Q\u306f\u5185\u5074\u306b\u5411\u304b\u3063\u3066\u52d5\u304d\u51fa\u3059\u305f\u3081\u3001\u6700\u521d\u306e\u72b6\u614b\u3067\u3070\u306d\u306f\u4f38\u3073\u3066\u3044\u307e\u3059\uff01\u3088\u3063\u3066\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{ \\sqrt{h^2+4B^2} &#8211; l \\gt 0} $$\n$$ \\color{black}{ \\therefore | \\sqrt{h^2+4B^2} &#8211; l| \\gt |h-l|} $$\n$$ \\color{black}{ \\sqrt{h^2+4B^2} &#8211; l \\gt l &#8211; h} $$\n$$ \\color{black}{ \\therefore B \\gt \\sqrt{l(l-h)} } $$\n$$ \\color{black}{ B_0 = \\sqrt{l(l-h)} } $$<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u3061\u306a\u307f\u306b\u3001\u5de6\u53f3\u306e\u4f4d\u7f6e\u95a2\u4fc2\u304c\u9006\u306b\u306a\u3089\u306a\u3044\u3068\u304d\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u52d5\u304d\u306b\u306a\u308a\u307e\u3059\uff01\u26a0\ufe0f\u26a0\ufe0f<\/mark><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1d_dummy-1024x1024.gif\" alt=\"\" class=\"wp-image-1114\" srcset=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1d_dummy-1024x1024.gif 1024w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1d_dummy-300x300.gif 300w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1d_dummy-150x150.gif 150w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1d_dummy-768x768.gif 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">\u7269\u4f53P\u306e\u7247\u65b9\u304c\u56fa\u5b9a\u3055\u308c\u3066\u3044\u308b\u6642\u306e\u904b\u52d5<\/h1>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"742\" height=\"1024\" src=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/17b5ee85781e0b9fd1f3fba206f9cf40-742x1024.jpg\" alt=\"\" class=\"wp-image-970\" srcset=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/17b5ee85781e0b9fd1f3fba206f9cf40-742x1024.jpg 742w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/17b5ee85781e0b9fd1f3fba206f9cf40-217x300.jpg 217w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/17b5ee85781e0b9fd1f3fba206f9cf40-768x1060.jpg 768w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/17b5ee85781e0b9fd1f3fba206f9cf40-1113x1536.jpg 1113w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/17b5ee85781e0b9fd1f3fba206f9cf40-1024x1413.jpg 1024w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/05\/17b5ee85781e0b9fd1f3fba206f9cf40.jpg 1208w\" sizes=\"auto, (max-width: 742px) 100vw, 742px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">(e) \u7269\u4f53\u304c\u52d5\u304d\u51fa\u3059\u6642\u306e\u7269\u4f532\u306e\u4f4d\u7f6e\u3068\u901f\u3055<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u7269\u4f53P\u306b\u53f3\u5074\u306b\u529b\u304c\u306f\u305f\u3089\u304d\u59cb\u3081\u308b\u3068\u304d\u3001\u3070\u306d\u304c\u81ea\u7136\u9577\u3088\u308a\u77ed\u304f\u306a\u308a\u307e\u3059\uff01\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u6c42\u3081\u308b\u5024\u306e\u6642\u306e\u3070\u306d\u306e\u9577\u3055\u306f\ud835\udc59\u306b\u306a\u308a\u307e\u3059\u306d\u30023\u5e73\u65b9\u306e\u5b9a\u7406\u3088\u308a\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{l^2 = h^2 + x_1^2} $$\n$$ \\color{black}{ \\therefore x_1 = &#8211; \\sqrt{l^2 &#8211; h^2} \u3000( \\because x_1 &lt; 0 ) } $$<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u307e\u305f\u3001\u529b\u5b66\u7684\u30a8\u30cd\u30eb\u30ae\u30fc\u4fdd\u5b58\u5247\u3088\u308a\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{ \\frac{1}{2} k( \\sqrt{C^2+h^2} &#8211; l)^2 = \\frac{1}{2} mV_1^2} $$\n$$ \\color{black}{ \\therefore V_1 = \\sqrt{ \\frac{k}{m} } ( \\sqrt{C^2+h^2} &#8211; l) } $$<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">(f) \u7269\u4f53Q\u304c\u7269\u4f53P\u3092\u8ffd\u3044\u8d8a\u3059\u5834\u5408\u306b\u3064\u3044\u3066<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u7269\u4f53Q\u304c\u7269\u4f53P\u3092\u8ffd\u3044\u8d8a\u3059\u5834\u5408\u3001\ud835\udc65<sub>\ud835\udc5d<\/sub>=\ud835\udc65<sub>\ud835\udc5e<\/sub>\u306e\u6642\u306eP, Q\u306e\u901f\u5ea6\u306fQ\u306e\u65b9\u304c\u5927\u304d\u3044\u3068\u3044\u3046\u3053\u3068\u304c\u6761\u4ef6\u3067\u3059\uff01<\/mark><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1f_mov-1-1024x1024.gif\" alt=\"\" class=\"wp-image-1116\" srcset=\"https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1f_mov-1-1024x1024.gif 1024w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1f_mov-1-300x300.gif 300w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1f_mov-1-150x150.gif 150w, https:\/\/japper-tapchka.blog\/Diary\/wp-content\/uploads\/2026\/07\/ScienceTokyo2026-1f_mov-1-768x768.gif 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\ud835\udc65<sub>\ud835\udc5d<\/sub>=\ud835\udc65<sub>\ud835\udc5e<\/sub>\u306e\u6642\u306eP, Q\u306e\u901f\u5ea6\u3092\u305d\u308c\u305e\u308c\ud835\udc49<sub>\ud835\udc5d<\/sub>, \ud835\udc49<sub>\ud835\udc5e<\/sub>\u3068\u3057\u3066\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u4fdd\u5b58\u529b\u3088\u308a\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{ \\frac{1}{2} mV_1^2 = \\frac{1}{2} mV_p^2 + \\frac{1}{2} mV_q^2 + \\frac{1}{2} k(h-l)^2 } $$<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\ud835\udc65\u8ef8\u65b9\u5411\u306e\u904b\u52d5\u91cf\u4fdd\u5b58\u5247\u3088\u308a\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{mV_1 = mV_p + mV_q} $$<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u3053\u3053\u3067\u3001\ud835\udc491=\ud835\udc492\u306e\u3068\u304d\u3001\ud835\udc49\ud835\udc5d=\ud835\udc49\ud835\udc5e\u306b\u306a\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{ \\therefore V_2 = \\sqrt{ \\frac{2k}{m} (h-l)^2} = (l-h) \\sqrt{ \\frac{2k}{m} } \u3000( \\because l &gt; h) } $$<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">(g) \u7269\u4f53Q\u304c\u7269\u4f53P\u3092\u8ffd\u3044\u8d8a\u3059\u5834\u5408\u306e\u7269\u4f53Q\u306e\u521d\u671f\u4f4d\u7f6e<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\ud835\udc49<sub>1<\/sub>&gt;\ud835\udc49<sub>2<\/sub>\u3067\u3042\u308b\u3053\u3068\u3068\u3001(e), (f)\u306e\u5f0f\u3092\u5408\u308f\u305b\u308b\u3068\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{ V_1 = \\sqrt{ \\frac{k}{m} } ( \\sqrt{C^2+h^2} &#8211; l) \\gt (l-h) \\sqrt{ \\frac{2k}{m} } = V_2} $$<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u3053\u3053\u3067\u3001\u554f\u984c\u6587\u306e\u6761\u4ef6\u3092\u52a0\u3048\u308b\u3068\u3001<\/mark><\/p>\n\n\n\n<div class=\"wp-block-mathml-mathmlblock\">$$ \\color{black}{ \\sqrt{ \\frac{k}{m} } ( \\sqrt{C^2+ \\frac{1}{2} l^2} &#8211; l) \\gt (l &#8211; \\frac{1}{ \\sqrt{2} } l) \\sqrt{ \\frac{2k}{m} } } $$\n$$ \\color{black}{ \\therefore C \\gt \\sqrt{ \\frac{3}{2} } l} $$\n$$ \\color{black}{C_0 = \\sqrt{ \\frac{3}{2} } l} $$<\/div>\n\n\n\n<h1 class=\"wp-block-heading\">\u3042\u3068\u304c\u304d<\/h1>\n\n\n\n<p class=\"wp-block-paragraph\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-black-color\">\u3044\u304b\u304c\u3067\u3057\u305f\u3067\u3057\u3087\u3046\u304b\uff1f\u3070\u306d\u3067\u7e4b\u304c\u308c\u305f2\u3064\u306e\u7269\u4f53\u304c\u76f8\u4e92\u306b\u529b\u3092\u53ca\u307c\u3057\u3042\u3044\u306a\u304c\u3089\u52d5\u304f\u3068\u3044\u3046\u5c11\u3057\u8907\u96d1\u306a\u554f\u984c\u3067\u3057\u305f\u3002\u305f\u3060\u3001\u52d5\u304d\u306b\u95a2\u3057\u3066\u5f0f\u3092\u7528\u3044\u3066\u6c42\u3081\u308b\u3068\u3044\u3046\u3088\u308a\u304b\u306f\u3001\u3042\u308b\u7279\u5b9a\u306e\u6761\u4ef6\u3084\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u306e\u5024\u3092\u5c0e\u51fa\u3059\u308b\u3082\u306e\u304c\u591a\u3044\u305f\u3081\u3001\u3054\u81ea\u8eab\u3067\u6761\u4ef6\u3092\u56fa\u5b9a\u3057\u3066\u5f0f\u3092\u7acb\u3066\u3066\u3044\u304f\u3068\u30b9\u30e9\u30b9\u30e9\u3068\u89e3\u3051\u308b\u3067\u3057\u3087\u3046\uff01\u3068\u306f\u3044\u3046\u3082\u306e\u306e\u3001\u5168\u4f53\u306e\u52d5\u304d\u306e\u30a4\u30e1\u30fc\u30b8\u306f\u601d\u3044\u3064\u304f\u3068\u89e3\u304d\u3084\u3059\u3044\u3068\u601d\u3046\u306e\u3067\u3001\u662f\u975e\u3068\u3082\u3053\u306e\u52d5\u753b\u3092\u4f7f\u3063\u3066\u3001\u30a4\u30e1\u30fc\u30b8\u3092\u4f5c\u3063\u3066\u307f\u3066\u304f\u3060\u3055\u3044\uff01\uff01<\/mark><\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/japper-tapchka.blog\/Diary\/tokyo-tech-2026-physics-2\/\">\u7b2c2\u554f<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/japper-tapchka.blog\/Diary\/tokyo-tech-2026-physics-3\/\">\u7b2c3\u554f<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/japper-tapchka.blog\/Diary\/tokyo-tech-2025-physics-1\/\">2025<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u4eca\u56de\u306f\u6771\u4eac\u79d1\u5b66\u5927\u5b66(\u65e7\u6771\u5de5\u5927)2026\u5e74\u5ea6\u5165\u8a66\u306e\u7269\u7406\u7b2c1\u554f\u306b\u3064\u3044\u3066\u3001\u7d30\u304b\u304f\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\uff01\u554f\u984c\u306f\u89e3\u8aac\u306e\u90fd\u5408\u4e0a\u3001\u90e8\u5206\u7684\u306b\u63b2\u8f09\u3057\u3066\u304a\u308a\u307e\u3059\u304c\u3001\u30d5\u30ebPDF\u304c\u6b32\u3057\u3044\u5834\u5408\u306f\u5927\u5b66\u306e\u30db\u30fc\u30e0\u30da\u30fc\u30b8\u3084\u4e88\u5099\u6821\u306e\u30b5\u30a4\u30c8\u304b\u3089\u5165\u624b\u3057\u3066\u304f\u3060\u3055\u3044\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[24,25],"tags":[48,33,31,30],"class_list":["post-966","post","type-post","status-publish","format-standard","hentry","category-24","category-25","tag-48","tag-33","tag-31","tag-30"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/japper-tapchka.blog\/Diary\/wp-json\/wp\/v2\/posts\/966","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/japper-tapchka.blog\/Diary\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/japper-tapchka.blog\/Diary\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/japper-tapchka.blog\/Diary\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/japper-tapchka.blog\/Diary\/wp-json\/wp\/v2\/comments?post=966"}],"version-history":[{"count":14,"href":"https:\/\/japper-tapchka.blog\/Diary\/wp-json\/wp\/v2\/posts\/966\/revisions"}],"predecessor-version":[{"id":1311,"href":"https:\/\/japper-tapchka.blog\/Diary\/wp-json\/wp\/v2\/posts\/966\/revisions\/1311"}],"wp:attachment":[{"href":"https:\/\/japper-tapchka.blog\/Diary\/wp-json\/wp\/v2\/media?parent=966"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/japper-tapchka.blog\/Diary\/wp-json\/wp\/v2\/categories?post=966"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/japper-tapchka.blog\/Diary\/wp-json\/wp\/v2\/tags?post=966"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}