{"id":1431,"date":"2000-01-05T13:56:57","date_gmt":"2000-01-05T05:56:57","guid":{"rendered":"http:\/\/www.qiusir.cn\/archives\/1431"},"modified":"2026-04-03T10:39:05","modified_gmt":"2026-04-03T02:39:05","slug":"6%e6%9b%b2%e7%ba%bf%e8%bf%90%e5%8a%a8","status":"publish","type":"post","link":"https:\/\/www.qiusir.com\/?p=1431","title":{"rendered":"\u00a704.\u629b\u4f53\u8fd0\u52a8"},"content":{"rendered":"<p>2\u3001\u8fd0\u52a8\u7684\u5408\u6210\u4e0e\u5206\u89e3<br \/>\n\u4ea4\u70b9\u7684\u901f\u5ea6\uff1b\u540c\u4e00\u6839\u7ef3\u5b50\uff0f\u7aff\u4e0a\u7684\u901f\u5ea6\uff0f\u89d2\u901f\u5ea6<br \/>\n\u6e21\u8239\u95ee\u9898\uff0c\u5982\u679c\u8239\u7684\u901f\u5ea6\u5c0f\u4e8e\u6cb3\u6c34\u7684\u901f\u5ea6\uff0c\u5982\u6b64\u60c5\u51b5\u4e0b\u7684\u822a\u884c\u7684\u6700\u5c0f\u822a\u7a0b\u3002<br \/>\n\u800c\u6cbf\u67d0\u4e00\u65b9\u5411\u53ef\u80fd\u6709\u4e24\u4e2a\u89e3\u3002<br \/>\n3\u3001\u63a2\u7a76\u5e73\u629b\u8fd0\u52a8\u7684\u89c4\u5f8b<br \/>\n\u629b\u4f53projectile\uff0c\u62c9\u4e01\u6587pro-\u5411\u524d\uff0cject\u6254\u51fa\u53bb<br \/>\n\uff08\u5173\u4e8e\u5e73\u7b49\uff0c\u5730\u7403\u5bf9\u4e07\u7269\u7684\u529b\u56e0\u4e3a\u8d28\u91cf\u4e0d\u540c\u800c\u4e0d\u540c\uff0c\u4f46\u90fd\u662f\u5177\u6709\u76f8\u540c\u7684g\uff0c\u800c\u7279\u522b\u7684\u5730\u533ag\u4e5f\u4e0d\u540c\uff0c\u8fd9\u662f\u4e00\u79cd\u5e73\u7b49\u7684\u7406\u89e3\uff09<br \/>\n\u5bf9\u5300\u53d8\u901f\u8fd0\u52a8\u7269\u4f53\u76f8\u540c\u65f6\u95f4\u95f4\u9694\u5185\u4f4d\u79fb\u589e\u91cf\u7b49\u4e8eaT^2\u8981\u66f4\u719f\u7ec3\u89e3\u51b3\uff0c\u8fd8\u8981\u5bf9\u6570\u5b57\u6709\u66f4\u597d\u7684\u7406\u89e3\u3002<br \/>\n4\u3001\u629b\u4f53\u8fd0\u52a8\u7684\u89c4\u5f8b<br \/>\n\u4f4d\u79fb\u548c\u6c34\u5e73\u7684\u5939\u89d2\uff1b\u901f\u5ea6\u548c\u6c34\u5e73\u7684\u5939\u89d2\uff1b\u76f8\u5f53\u4e8e\u4ece\u4e2d\u70b9\u53d1\u51fa\u7684\u3002<br \/>\n\u5c04\u7a0b\u7684\u95ee\u9898\uff1b\u6700\u9ad8\u70b9\u7ad6\u76f4\u901f\u5ea6\u4e3a\u96f6\u3002<\/p>\n<p>\u629b\u4f53\u8fd0\u52a8\u53ef\u4ee5\u628a$X=v_0t+\\frac{1}{2}at^2$\u770b\u6210\u662f\u77e2\u91cf\u8868\u8fbe\u5f0f\u5c31\u53ef\u3002<br \/>\n\u5300\u53d8\u901f\u66f2\u7ebf\u8fd0\u52a8\u5e73\u5747\u901f\u5ea6$\\frac{x}{t}$\u3001$\\Delta x=aT^2$\u7684\u5411\u91cf\u6027\u4ee5\u53ca\u548c\u4e2d\u95f4\u65f6\u523b\u77ac\u65f6\u901f\u5ea6\u7b49\u53ef\u4ee5\u4ece\u5300\u53d8\u901f\u76f4\u7ebf\u8fd0\u52a8\u8fc1\u79fb\u8fc7\u6765\u3002<br \/>\n(eg:t=1\\3\\5\u7ecf\u8fc7(0,0)(8,0)(8,6)\u52a0\u901f\u5ea62.5)<\/p>\n<p>\u659c\u629b\u8fd0\u52a8\u5750\u6807\u7cfb\u53d8\u6362\u770b\u8fd0\u52a8\u5408\u6210\u3002\uff08\u659c\u7684\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8\u548c\u81ea\u7531\u843d\u4f53\u7684\u53e0\u52a0\uff09<br \/>\n$L=v_0t$<br \/>\n$x=v_0cos\\alpha t=L cos\\alpha$<br \/>\n$y=v_0sin\\alpha t-\\frac{1}{2}gt^2=L sin\\alpha-\\frac{1}{2}gt^2$<br \/>\n5\u3001\u5706\u5468\u8fd0\u52a8<br \/>\n$\\frac{\\Delta r}{r}=\\frac{\\Delta v}{v}$<br \/>\n\u4e24\u8fb9\u540c\u9664\u4ee5$\\Delta t$<br \/>\n$\\frac{\\Delta r}{r\\Delta t}=\\frac{\\Delta v}{v\\Delta t}$\uff0c$\\frac{v}{r}=\\frac{a}{v}$<br \/>\n6\u3001\u5411\u5fc3\u52a0\u901f\u5ea6<br \/>\n\u901a\u8fc7\u901f\u5ea6\u7684\u6c34\u5e73\u548c\u7ad6\u76f4\u5206\u91cf\u7684\u5bfc\u6570\uff0c\u6c42\u89e3\u51fa\u6c34\u5e73\u548c\u7ad6\u76f4\u7684\u52a0\u901f\u5ea6\uff0c\u6c42\u89e3\u5408\u52a0\u901f\u5ea6\u3002<br \/>\n7\u3001\u5411\u5fc3\u529b<br \/>\n8\u3001\u751f\u6d3b\u4e2d\u7684\u5706\u5468\u8fd0\u52a8<br \/>\n\u516c\u8def\u5728\u901a\u8fc7\u6c34\u5e93\u6cc4\u6d2a\u95f8\u4e0b\u6e38\u65f6\u5e38\u5e38\u8981\u4fee\u5efa\u51f9\u5f62\u6865\uff0c\u4e5f\u53eb\u8fc7\u6c34\u8def\u9762\u3002<\/p>\n<p><center><img decoding=\"async\" alt=\"\" src=\"http:\/\/www.qiusir.com\/wp-content\/gallery\/physics\/xy33.png\" width=\"580\" class=\"framed\" \/><\/center><br \/>\n\u52fe\u80a1\u5b9a\u7406\u6c42\u4f4d\u79fb\u5927\u5c0f\u540e\u901a\u8fc7\u5e73\u5747\u901f\u5ea6\u6c42$v_A$<br \/>\n\u00b7\u4e00\u9053\u8fd0\u52a8\u5b66\u9898\u76ee\u7684\u591a\u79cd\u89e3\u6cd5[<a href=\"http:\/\/www.qiusir.com\/?p=18376\" rel=\"noopener\" target=\"_blank\">?<\/a>]<br \/>\n\u00b7\u7b49\u901f\u5706\u5468\u7684\u5411\u5fc3\u529b\u8bc1\u660e[<a href=\"http:\/\/www.qiusir.com\/?p=26466\" rel=\"noopener\" target=\"_blank\">?<\/a>]<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"Z3gIwJrsKf\"><p><a href=\"https:\/\/www.qiusir.com\/2026\/04\/qiutopia%e6%8a%9b%e4%bd%93%e8%bf%90%e5%8a%a8%e8%a7%a3%e6%9e%90\/\">qiutopIA\u629b\u4f53\u8fd0\u52a8\u89e3\u6790<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; 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