{"id":1102,"date":"2013-08-09T22:26:28","date_gmt":"2013-08-09T14:26:28","guid":{"rendered":"http:\/\/fbjia.com\/?p=1102"},"modified":"2013-08-13T11:14:08","modified_gmt":"2013-08-13T03:14:08","slug":"%e9%ab%98%e4%b8%ad%e7%89%a9%e7%90%86%e6%80%bb%e5%a4%8d%e4%b9%a0%e5%85%ac%e5%bc%8f-%e5%8a%9b%e5%ad%a6%e5%85%ac%e5%bc%8f","status":"publish","type":"post","link":"http:\/\/fbjia.com\/index.php\/archives\/1102.html","title":{"rendered":"\u9ad8\u4e2d\u7269\u7406\u603b\u590d\u4e60\u516c\u5f0f\u2014\u529b\u5b66\u516c\u5f0f"},"content":{"rendered":"

\u4e00\u3001\u529b\u5b66\u516c\u5f0f<\/strong><\/p>\n

1\u3001 \u00a0\u80e1\u514b\u5b9a\u5f8b\uff1a \u00a0 F = kx \u00a0 \u00a0 (x\u4e3a\u4f38\u957f\u91cf\u6216\u538b\u7f29\u91cf,K\u4e3a\u5014\u5f3a\u7cfb\u6570\uff0c\u53ea\u4e0e\u5f39\u7c27\u7684\u539f\u957f\u3001\u7c97\u7ec6\u548c\u6750\u6599\u6709\u5173)\u3002<\/p>\n

2\u3001 \u00a0\u91cd\u529b\uff1a \u00a0 \u00a0 \u00a0 \u00a0 \u00a0G = mg \u00a0 \u00a0 \u00a0(g\u968f\u9ad8\u5ea6\u3001\u7eac\u5ea6\u3001\u5730\u8d28\u7ed3\u6784\u800c\u53d8\u5316) \u3002<\/p>\n

3 \u3001\u6c42F1\u3001F2\u4e24\u4e2a\u5171\u70b9\u529b\u7684\u5408\u529b\u7684\u516c\u5f0f\uff1a\u7701\u7565<\/p>\n

\u6ce8\u610f\uff1a(1)\u00a0\u529b\u7684\u5408\u6210\u548c\u5206\u89e3\u90fd\u5747\u9075\u4ece\u5e73\u884c\u56db\u8fb9\u884c\u6cd5\u5219\u3002 \u00a0<\/span><\/p>\n

(2)\u00a0\u4e24\u4e2a\u529b\u7684\u5408\u529b\u8303\u56f4\uff1a | F1\uff0dF2 |< F<|F1\u00a0+F2| \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/span><\/p>\n

(3)\u00a0\u5408\u529b\u5927\u5c0f\u53ef\u4ee5\u5927\u4e8e\u5206\u529b\u3001\u4e5f\u53ef\u4ee5\u5c0f\u4e8e\u5206\u529b\u3001\u4e5f\u53ef\u4ee5\u7b49\u4e8e\u5206\u529b\u3002<\/span><\/p>\n

4\u3001\u4e24\u4e2a\u5e73\u8861\u6761\u4ef6\uff1a<\/p>\n

\uff081\uff09\u00a0\u5171\u70b9\u529b\u4f5c\u7528\u4e0b\u7269\u4f53\u7684\u5e73\u8861\u6761\u4ef6\uff1a\u9759\u6b62\u6216\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8\u7684\u7269\u4f53\uff0c\u6240\u53d7\u5408\u5916\u529b\u4e3a\u96f6\u3002<\/p>\n

\u63a8\u8bba\uff1a[1]\u975e\u5e73\u884c\u7684\u4e09\u4e2a\u529b\u4f5c\u7528\u4e8e\u7269\u4f53\u800c\u5e73\u8861\uff0c\u5219\u8fd9\u4e09\u4e2a\u529b\u4e00\u5b9a\u5171\u70b9\u3002<\/p>\n

[2]\u51e0\u4e2a\u5171\u70b9\u529b\u4f5c\u7528\u4e8e\u7269\u4f53\u800c\u5e73\u8861\uff0c\u5176\u4e2d\u4efb\u610f\u51e0\u4e2a\u529b\u7684\u5408\u529b\u4e0e\u5269\u4f59\u51e0\u4e2a\u529b\u00a0\uff08\u4e00\u4e2a\u529b\uff09\u7684\u5408\u529b\u4e00\u5b9a\u7b49\u503c\u53cd\u5411\u3002<\/p>\n

\uff08 2\u00a0)\u00a0\u00a0\u6709\u56fa\u5b9a\u8f6c\u52a8\u8f74\u7269\u4f53\u7684\u5e73\u8861\u6761\u4ef6\uff1a \u529b\u77e9\u4ee3\u6570\u548c\u4e3a\u96f6\uff0e<\/span><\/p>\n

\u529b\u77e9\uff1aM=FL\u00a0\u00a0\u00a0(L\u4e3a\u529b\u81c2\uff0c\u662f\u8f6c\u52a8\u8f74\u5230\u529b\u7684\u4f5c\u7528\u7ebf\u7684\u5782\u76f4\u8ddd\u79bb\uff09\u3002<\/span><\/p>\n

5\u3001\u6469\u64e6\u529b\u7684\u516c\u5f0f\uff1a<\/p>\n

\uff081 ) \u00a0\u6ed1\u52a8\u6469\u64e6\u529b\uff1af =\u03bcN \u3002<\/span><\/p>\n

\u8bf4\u660e\u00a0\uff1a\u00a0a\u3001N\u4e3a\u63a5\u89e6\u9762\u95f4\u7684\u5f39\u529b\uff0c\u53ef\u4ee5\u5927\u4e8eG\uff1b\u4e5f\u53ef\u4ee5\u7b49\u4e8eG;\u4e5f\u53ef\u4ee5\u5c0f\u4e8eG<\/p>\n

b\u3001\u03bc\u4e3a\u6ed1\u52a8\u6469\u64e6\u7cfb\u6570\uff0c\u53ea\u4e0e\u63a5\u89e6\u9762\u6750\u6599\u548c\u7c97\u7cd9\u7a0b\u5ea6\u6709\u5173\uff0c\u4e0e\u63a5\u89e6\u9762\u00a0\u79ef\u5927\u5c0f\u3001\u63a5\u89e6\u9762\u76f8\u5bf9\u8fd0\u52a8\u5feb\u6162\u4ee5\u53ca\u6b63\u538b\u529bN\u65e0\u5173.<\/p>\n

(2 ) \u9759\u6469\u64e6\u529b\uff1a \u7531\u7269\u4f53\u7684\u5e73\u8861\u6761\u4ef6\u6216\u725b\u987f\u7b2c\u4e8c\u5b9a\u5f8b\u6c42\u89e3,\u4e0e\u6b63\u538b\u529b\u65e0\u5173. \u00a0 \u00a0 \u00a0 \u5927\u5c0f\u8303\u56f4\uff1a \u00a0O< f\u9759< fm \u00a0 \u00a0(fm\u4e3a\u6700\u5927\u9759\u6469\u64e6\u529b\uff0c\u4e0e\u6b63\u538b\u529b\u6709\u5173)\u3002<\/p>\n

\u8bf4\u660e\uff1a<\/p>\n

a\u00a0\u3001\u6469\u64e6\u529b\u53ef\u4ee5\u4e0e\u8fd0\u52a8\u65b9\u5411\u76f8\u540c\uff0c\u4e5f\u53ef\u4ee5\u4e0e\u8fd0\u52a8\u65b9\u5411\u76f8\u53cd\uff0c\u8fd8\u53ef\u4ee5\u4e0e\u8fd0\u52a8\u65b9\u5411\u6210\u4e00\u00a0\u5b9a\u00a0\u00a0\u5939\u89d2\u3002<\/p>\n

b\u3001\u6469\u64e6\u529b\u53ef\u4ee5\u4f5c\u6b63\u529f\uff0c\u4e5f\u53ef\u4ee5\u4f5c\u8d1f\u529f\uff0c\u8fd8\u53ef\u4ee5\u4e0d\u4f5c\u529f\u3002<\/p>\n

c\u3001\u6469\u64e6\u529b\u7684\u65b9\u5411\u4e0e\u7269\u4f53\u95f4\u76f8\u5bf9\u8fd0\u52a8\u7684\u65b9\u5411\u6216\u76f8\u5bf9\u8fd0\u52a8\u8d8b\u52bf\u7684\u65b9\u5411\u76f8\u53cd\u3002<\/p>\n

d\u3001\u9759\u6b62\u7684\u7269\u4f53\u53ef\u4ee5\u53d7\u6ed1\u52a8\u6469\u64e6\u529b\u7684\u4f5c\u7528\uff0c\u8fd0\u52a8\u7684\u7269\u4f53\u53ef\u4ee5\u53d7\u9759\u6469\u64e6\u529b\u7684\u4f5c\u7528\u3002<\/p>\n

6\u3001 \u6d6e\u529b\uff1a \u00a0 \u00a0 \u00a0 \u00a0 \u00a0F=\u03c1vg(\u6ce8\u610f\u5355\u4f4d\uff09\u3002<\/span><\/p>\n

7\u3001<\/span>\u4e07\u6709\u5f15\u529b\uff1aGm1m2\/r^2 \u00a0\u00a0<\/span>(1)\uff0e\u00a0\u9002\u7528\u6761\u4ef6\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(2)\u00a0\uff0eG\u4e3a\u4e07\u6709\u5f15\u529b\u6052\u91cf\u00a0<\/span>(3)\u00a0\uff0e\u5728\u5929\u4f53\u4e0a\u7684\u5e94\u7528\uff1a\uff08M\u4e00\u5929\u4f53\u8d28\u91cf\u00a0\u00a0\u00a0R\u4e00\u5929\u4f53\u534a\u5f84\u00a0\u00a0g\u4e00\u5929\u4f53\u8868\u9762\u91cd\u529b<\/span>\u52a0\u901f\u5ea6\uff09<\/span><\/p>\n

a \u3001\u4e07\u6709\u5f15\u529b=\u5411\u5fc3\u529b<\/p>\n

b\u3001\u5728\u5730\u7403\u8868\u9762\u9644\u8fd1\uff0c\u91cd\u529b=\u4e07\u6709\u5f15\u529b<\/p>\n

C\u3001\u7b2c\u4e00\u5b87\u5b99\u901f\u5ea6\uff1a<\/p>\n

8\u3001\u5e93\u4ed1\u529b\uff1a<\/p>\n

9\u3001\u7535\u573a\u529b\uff1aF=qE\u00a0 \u00a0\u00a0\u00a0\u00a0(F \u4e0e\u7535\u573a\u5f3a\u5ea6\u7684\u65b9\u5411\u53ef\u4ee5\u76f8\u540c\uff0c\u4e5f\u53ef\u4ee5\u76f8\u53cd)<\/p>\n

10\u3001\u78c1\u573a\u529b\uff1a<\/p>\n

\uff081\uff09\u00a0\u6d1b\u4ed1\u5179\u529b\uff1a\u78c1\u573a\u5bf9\u8fd0\u52a8\u7535\u8377\u7684\u4f5c\u7528\u529b\u3002\u516c\u5f0f\uff1af=BqV\u00a0\u00a0(B\uf05eV)\u00a0\u00a0\u00a0\u65b9\u5411\u4e00\u5de6\u624b\u5b9a<\/p>\n

\uff082\uff09\u00a0\u5b89\u57f9\u529b\u00a0\uff1a\u00a0\u78c1\u573a\u5bf9\u7535\u6d41\u7684\u4f5c\u7528\u529b\u3002\u00a0\u00a0\u516c\u5f0f\uff1aF=\u00a0BIL\u00a0\uff08B\uf05eI\uff09\u00a0\u00a0\u65b9\u5411\u4e00\u5de6\u624b\u5b9a\u5219<\/p>\n

11\u3001\u00a0\u725b\u987f\u7b2c\u4e8c\u5b9a\u5f8b\uff1a\u00a0\u00a0\u00a0\u00a0F\u5408\u00a0=\u00a0ma\u00a0\u00a0 \u00a0\u6216\u8005\u00a0\uf0e5Fx\u00a0=\u00a0m\u00a0ax\u00a0\u00a0\u00a0\u00a0\u00a0\uf0e5Fy\u00a0=\u00a0m\u00a0ay<\/p>\n

\u7406\u89e3\uff1a\uff081\uff09\u77e2\u91cf\u6027\u00a0\u00a0\uff082\uff09\u77ac\u65f6\u6027\u00a0\u00a0\u00a0\uff083\uff09\u72ec\u7acb\u6027\u00a0\u00a0\u00a0\u00a0\uff084\uff09\u00a0\u540c\u4f53\u6027\u00a0\u00a0\uff085\uff09\u540c\u7cfb\u6027\u00a0\u00a0\u00a0\uff086\uff09\u540c\u5355\u4f4d\u5236<\/p>\n

12\u3001\u5300\u53d8\u901f\u76f4\u7ebf\u8fd0\u52a8\uff1a<\/p>\n

\u57fa\u672c\u89c4\u5f8b\uff1a\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Vt\u00a0=\u00a0V0\u00a0+\u00a0a\u00a0t\u00a0\u00a0\u00a0\u00a0\u00a0S\u00a0=\u00a0vo\u00a0t\u00a0+1\/2a\u00a0t^2<\/p>\n

\u51e0\u4e2a\u91cd\u8981\u63a8\u8bba\uff1a<\/p>\n

\u00a0(1)\u00a0 Vt^2\u00a0\u00a0\uff0d\u00a0V0^2\u00a0=\u00a02as\u00a0\u00a0\uff08\u5300\u52a0\u901f\u76f4\u7ebf\u8fd0\u52a8\uff1aa\u4e3a\u6b63\u503c\u00a0\u00a0\u5300\u51cf\u901f\u76f4\u7ebf\u8fd0\u52a8\uff1aa\u4e3a\u6b63\u503c\uff09<\/p>\n

(2)\u00a0\u00a0A\u00a0B\u6bb5\u4e2d\u95f4\u65f6\u523b\u7684\u5373\u65f6\u901f\u5ea6:\u00a0\u00a0Vt\/\u00a02\u00a0=(Vt+V0)\/2=S\/t<\/p>\n

(3)\u00a0\u00a0\u00a0AB\u6bb5\u4f4d\u79fb\u4e2d\u70b9\u7684\u5373\u65f6\u901f\u5ea6: Vs\/2\u00a0\u00a0=\u00a0[(V0^2+Vt^2)\/2]^1\/2<\/p>\n

\u00a0\u5300\u901f\uff1aVt\/2\u00a0=Vs\/2\u00a0\u00a0;\u00a0\u5300\u52a0\u901f\u6216\u5300\u51cf\u901f\u76f4\u7ebf\u8fd0\u52a8\uff1aVt\/2\u00a0<Vs\/2<\/p>\n

(4)\u00a0\u00a0\u521d\u901f\u4e3a\u96f6\u7684\u5300\u52a0\u901f\u76f4\u7ebf\u8fd0\u52a8,\u57281s\u00a0\u30012s\u30013s\u201e\u201ens\u5185\u7684\u4f4d\u79fb\u4e4b\u6bd4\u4e3a1^2\uff1a2^2:3^2<\/p>\n

\u201e\u201en^2\uff1b<\/p>\n

\u5728\u7b2c1s\u00a0\u5185\u3001\u7b2c\u00a02s\u5185\u3001\u7b2c3s\u5185\u201e\u201e\u7b2cns\u5185\u7684\u4f4d\u79fb\u4e4b\u6bd4\u4e3a1\uff1a3\uff1a5\u201e\u201e\u00a0(2n-1);<\/p>\n

\u5728\u7b2c1\u7c73\u5185\u3001\u7b2c2\u7c73\u5185\u3001\u7b2c3\u7c73\u5185\u201e\u201e\u7b2cn\u7c73\u5185\u7684\u65f6\u95f4\u4e4b\u6bd4\u4e3a\uff1an^1\/2\uff1a\uff08n-1\uff09^1\/2<\/p>\n

(5)\u00a0\u00a0\u521d\u901f\u65e0\u8bba\u662f\u5426\u4e3a\u96f6,\u5300\u53d8\u901f\u76f4\u7ebf\u8fd0\u52a8\u7684\u8d28\u70b9,\u5728\u8fde\u7eed\u76f8\u90bb\u7684\u76f8\u7b49\u7684\u65f6\u95f4\u95f4\u9694\u5185\u7684\u4f4d\u79fb\u4e4b\u5dee\u4e3a\u4e00\u5e38\u6570\uff1a\uf044s\u00a0=\u00a0aT^2\u00a0\u00a0\u00a0\u00a0(a\u4e00\u5300\u53d8\u901f\u76f4\u7ebf\u8fd0\u52a8\u7684\u52a0\u901f\u5ea6\u00a0\u00a0T\u4e00\u6bcf\u4e2a\u65f6\u95f4\u95f4\u9694\u7684\u65f6\u95f4)<\/p>\n

13\u3001\u00a0\u7ad6\u76f4\u4e0a\u629b\u8fd0\u52a8\uff1a\u00a0\u00a0\u4e0a\u5347\u8fc7\u7a0b\u662f\u5300\u51cf\u901f\u76f4\u7ebf\u8fd0\u52a8\uff0c\u4e0b\u843d\u8fc7\u7a0b\u662f\u5300\u52a0\u901f\u76f4\u7ebf\u8fd0\u52a8\u3002\u5168\u8fc7\u7a0b\u662f\u521d\u901f\u5ea6\u4e3aVO\u3001\u52a0\u901f\u5ea6\u4e3a\uf02d-g\u7684\u5300\u51cf\u901f\u76f4\u7ebf\u8fd0\u52a8\u3002<\/p>\n

1\uff09\u00a0\u00a0\u4e0a\u5347\u6700\u5927\u9ad8\u5ea6\uff1a\u00a0H\u00a0=\u00a0V^2\/2g<\/p>\n

(2)\u00a0\u00a0\u00a0\u4e0a\u5347\u7684\u65f6\u95f4\uff1a\u00a0t=\u00a0V0\/g<\/p>\n

(3)\u00a0\u00a0\u00a0\u4e0a\u5347\u3001\u4e0b\u843d\u7ecf\u8fc7\u540c\u4e00\u4f4d\u7f6e\u65f6\u7684\u52a0\u901f\u5ea6\u76f8\u540c\uff0c\u800c\u901f\u5ea6\u7b49\u503c\u53cd\u5411<\/p>\n

\u00a0(4)\u00a0\u00a0\u00a0\u4e0a\u5347\u3001\u4e0b\u843d\u7ecf\u8fc7\u540c\u4e00\u6bb5\u4f4d\u79fb\u7684\u65f6\u95f4\u76f8\u7b49\u3002<\/p>\n

(5)\u4ece\u629b\u51fa\u5230\u843d\u56de\u539f\u4f4d\u7f6e\u7684\u65f6\u95f4\uff1at\u00a0=\u00a02V0\/g<\/p>\n

\uff086\uff09\u00a0\u00a0\u9002\u7528\u5168\u8fc7\u7a0b\u7684\u516c\u5f0f\uff1a\u00a0S\u00a0=\u00a0Vo\u00a0t\u00a0-1\/2g\u00a0t^2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Vt\u00a0=\u00a0Vo-g\u00a0t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Vt^2\u00a0\u4e00Vo^2\u00a0=\u00a0-2\u00a0gS\u00a0\u00a0\u00a0\u00a0\u00a0\uff08\u00a0S\u3001Vt\u7684\u6b63\u3001\u8d1f\u53f7\u7684\u7406\u89e3\uff09<\/p>\n

14\u3001\u5300\u901f\u5706\u5468\u8fd0\u52a8\u516c\u5f0f\uff1a\u7ebf\u901f\u5ea6:\u00a0\u00a0\u00a0V=\u00a02\u03c0r\/T\u00a0\u00a0\u00a0 \u89d2\u901f\u5ea6\u03c9\uff1d\u03a6\/t\uff1d2\u03c0\/T\uff1d2\u03c0f
\n\u5411\u5fc3\u52a0\u901f\u5ea6a\uff1dV^2\/r\uff1d\u03c9^2r\uff1d(2\u03c0\/T)2r\u00a0\u00a0 \u5411\u5fc3\u529b\uff1a\u00a0F\uff1dMv^2\/r\uff1dm\u03c9^2r\uff1dmr(2\u03c0\/T)^2<\/p>\n

\u6ce8\u610f\uff1a\uff081\uff09\u5300\u901f\u5706\u5468\u8fd0\u52a8\u7684\u7269\u4f53\u7684\u5411\u5fc3\u529b\u5c31\u662f\u7269\u4f53\u6240\u53d7\u7684\u5408\u5916\u529b\uff0c\u603b\u662f\u6307\u5411\u5706\u5fc3\u3002<\/p>\n

\uff082\uff09\u536b\u661f\u7ed5\u5730\u7403\u3001\u884c\u661f\u7ed5\u592a\u9633\u4f5c\u5300\u901f\u5706\u5468\u8fd0\u52a8\u7684\u5411\u5fc3\u529b\u7531\u4e07\u6709\u5f15\u529b\u63d0\u4f9b\u3002<\/p>\n

\uff083\uff09\u6c22\u539f\u5b50\u6838\u5916\u7535\u5b50\u7ed5\u539f\u5b50\u6838\u4f5c\u5300\u901f\u5706\u5468\u8fd0\u52a8\u7684\u5411\u5fc3\u529b\u7531\u539f\u5b50\u6838\u5bf9\u6838\u5916\u7535\u5b50\u7684\u5e93\u4ed1\u529b\u63d0\u4f9b\u3002<\/p>\n

15\u00a0\u00a0\u76f4\u7ebf\u8fd0\u52a8\u516c\u5f0f\uff1a\u5300\u901f\u76f4\u7ebf\u8fd0\u52a8\u548c\u521d\u901f\u5ea6\u4e3a\u96f6\u7684\u5300\u52a0\u901f\u76f4\u7ebf\u8fd0\u52a8\u7684\u5408\u8fd0\u52a8\u3002<\/p>\n

\u6c34\u5e73\u5206\u8fd0\u52a8\uff1a\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6c34\u5e73\u4f4d\u79fb\uff1a\u00a0x=\u00a0vo\u00a0t\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u6c34\u5e73\u5206\u901f\u5ea6\uff1avx\u00a0=\u00a0vo<\/p>\n

\u7ad6\u76f4\u5206\u8fd0\u52a8\uff1a\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7ad6\u76f4\u4f4d\u79fb\uff1a\u00a0y\u00a0=1\/2gt^2 \u7ad6\u76f4\u5206\u901f\u5ea6\uff1avy=\u00a0g\u00a0t<\/p>\n

\u5728Vo\u3001Vy\u3001V\u3001X\u3001y\u3001t\u3001\uf071\u4e03\u4e2a\u7269\u7406\u91cf\u4e2d\uff0c\u5982\u679c\u5df2\u77e5\u5176\u4e2d\u4efb\u610f\u4e24\u4e2a\uff0c\u53ef\u6839\u636e\u4ee5\u4e0a\u516c\u5f0f\u6c42\u51fa\u5176\u5b83\u4e94\u4e2a\u7269\u7406\u91cf\u3002<\/p>\n

16\u00a0\u52a8\u91cf\u548c\u51b2\u91cf\uff1a\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u52a8\u91cf\uff1a\u00a0P\u00a0=\u00a0mV\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u51b2\u91cf\uff1aI\u00a0=\u00a0F\u00a0t<\/p>\n

17\u00a0\u52a8\u91cf\u5b9a\u7406\uff1a\u00a0\u00a0\u00a0\u7269\u4f53\u6240\u53d7\u5408\u5916\u529b\u7684\u51b2\u91cf\u7b49\u4e8e\u5b83\u7684\u52a8\u91cf\u7684\u53d8\u5316\u3002<\/p>\n

\u516c\u5f0f\uff1a\u00a0F\u5408t\u00a0=\u00a0mv\u2019\u00a0\u4e00mv\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(\u89e3\u9898\u65f6\u53d7\u529b\u5206\u6790\u548c\u6b63\u65b9\u5411\u7684\u89c4\u5b9a\u662f\u5173\u952e)<\/p>\n

18\u00a0\u52a8\u91cf\u5b88\u6052\u5b9a\u5f8b\uff1a\u76f8\u4e92\u4f5c\u7528\u7684\u7269\u4f53\u7cfb\u7edf\uff0c\u5982\u679c\u4e0d\u53d7\u5916\u529b\uff0c\u6216\u5b83\u4eec\u6240\u53d7\u7684\u5916\u529b\u4e4b\u548c\u4e3a\u96f6\uff0c\u5b83\u4eec\u7684\u603b\u52a8\u91cf\u4fdd\u6301\u4e0d\u53d8\u3002\u00a0\u00a0\uff08\u7814\u7a76\u5bf9\u8c61\uff1a\u76f8\u4e92\u4f5c\u7528\u7684\u4e24\u4e2a\u7269\u4f53\u6216\u591a\u4e2a\u7269\u4f53\uff09<\/p>\n

\u516c\u5f0f\uff1am1v1\u00a0\u00a0+\u00a0m2v2\u00a0=\u00a0m1\u00a0v1\u2019+\u00a0m2v2\u2019\u6216\uf044p1\u00a0\u53d8=-p2\u53d8\u00a0\u00a0\u00a0\u6216p1\u53d8\u00a0+p2\u53d8=0<\/p>\n

\u9002\u7528\u6761\u4ef6\uff1a\uff081\uff09\u7cfb\u7edf\u4e0d\u53d7\u5916\u529b\u4f5c\u7528\u3002\u00a0\u00a0\uff082\uff09\u7cfb\u7edf\u53d7\u5916\u529b\u4f5c\u7528\uff0c\u4f46\u5408\u5916\u529b\u4e3a\u96f6\u3002\uff083\uff09\u7cfb\u7edf\u53d7\u5916\u529b\u4f5c\u7528\uff0c\u5408\u5916\u529b\u4e5f\u4e0d\u4e3a\u96f6\uff0c\u4f46\u5408\u5916\u529b\u8fdc\u5c0f\u4e8e\u7269\u4f53\u95f4\u7684\u76f8\u4e92\u4f5c\u7528\u529b\u3002\u00a0\u00a0\u00a0\u00a0\uff084\uff09\u7cfb\u7edf\u5728\u67d0\u4e00\u4e2a\u65b9\u5411\u7684\u5408\u5916\u529b\u4e3a\u96f6\uff0c\u5728\u8fd9\u4e2a\u65b9\u5411\u7684\u52a8\u91cf\u5b88\u6052\u3002<\/p>\n

19\u00a0 \u529f\u00a0\uff1a\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0W\u00a0=\u00a0Fs\u00a0cos\uf071\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0(\u9002\u7528\u4e8e\u6052\u529b\u7684\u529f\u7684\u8ba1\u7b97\uff09<\/p>\n

\uff081\uff09\u00a0\u00a0\u7406\u89e3\u6b63\u529f\u3001\u96f6\u529f\u3001\u8d1f\u529f\u00a0\u00a0\u00a0 \uff082\uff09\u00a0\u00a0\u529f\u662f\u80fd\u91cf\u8f6c\u5316\u7684\u91cf\u5ea6\uff1a\u00a0\u91cd\u529b\u7684\u529f——\u91cf\u5ea6——\u91cd\u529b\u52bf\u80fd\u7684\u53d8\u5316\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u7535\u573a\u529b\u7684\u529f—–\u91cf\u5ea6——\u7535\u52bf\u80fd\u7684\u53d8\u5316\u00a0\u00a0\u00a0 \u5206\u5b50\u529b\u7684\u529f—–\u91cf\u5ea6——\u5206\u5b50\u52bf\u80fd\u7684\u53d8\u5316\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5408\u5916\u529b\u7684\u529f——\u91cf\u5ea6——-\u52a8\u80fd\u7684\u53d8\u5316<\/p>\n

20 \u00a0\u52a8\u80fd\u548c\u52bf\u80fd\uff1a<\/p>\n

\u52a8\u80fd\uff1a\u00a0Ek\u00a0=\u00a01\/2mV^2=P^2\/2m<\/p>\n

\u91cd\u529b\u52bf\u80fd\uff1aEp\u00a0=\u00a0mgh\u00a0\u00a0\u00a0\u00a0\u00a0(\u4e0e\u96f6\u52bf\u80fd\u9762\u7684\u9009\u62e9\u6709\u5173)<\/p>\n

21\u00a0\u00a0 \u52a8\u80fd\u5b9a\u7406\uff1a\u5916\u529b\u5bf9\u7269\u4f53\u6240\u505a\u7684\u603b\u529f\u7b49\u4e8e\u7269\u4f53\u52a8\u80fd\u7684\u53d8\u5316\uff08\u589e\u91cf\uff09\u3002<\/p>\n

\u516c\u5f0f\uff1a\u00a0\u00a0W\u5408=\u00a0\u53d8Ek\u00a0=\u00a0Ek2\u00a0\u4e00Ek1\u00a0=\u00a0\u00a01\/2m(V2^2-V1^2)<\/p>\n

22\u00a0\u00a0 \u673a\u68b0\u80fd\u5b88\u6052\u5b9a\u5f8b\uff1a\u673a\u68b0\u80fd\u00a0=\u00a0\u52a8\u80fd+\u91cd\u529b\u52bf\u80fd+\u5f39\u6027\u52bf\u80fd<\/p>\n

\u6761\u4ef6\uff1a\u7cfb\u7edf\u53ea\u6709\u5185\u90e8\u7684\u91cd\u529b\u6216\u5f39\u529b\u505a\u529f.<\/p>\n

23 \u529f\u7387\uff1a\u00a0\u00a0\u00a0\u00a0P\u00a0=\u00a0W\/t \u00a0(\u5728t\u65f6\u95f4\u5185\u529b\u5bf9\u7269\u4f53\u505a\u529f\u7684\u5e73\u5747\u529f\u7387)<\/p>\n

P\u00a0=\u00a0FV\u00a0\u00a0\u00a0\u00a0(F\u4e3a\u7275\u5f15\u529b\uff0c\u4e0d\u662f\u5408\u5916\u529b\uff1bV\u4e3a\u5373\u65f6\u901f\u5ea6\u65f6\uff0cP\u4e3a\u5373\u65f6\u529f\u7387\uff1bV\u4e3a\u5e73\u5747\u901f\u5ea6\u65f6\uff0cP\u4e3a\u5e73\u5747\u529f\u7387\uff1b\u00a0P\u4e00\u5b9a\u65f6\uff0cF\u4e0eV\u6210\u6b63\u6bd4\uff09<\/span><\/p>\n

24 \u7b80\u8c10\u632f\u52a8\uff1a\u00a0\u00a0\u00a0\u00a0\u56de\u590d\u529b\uff1a\u00a0\u00a0F\u00a0=\u00a0\u4e00KX\u00a0 \u52a0\u901f\u5ea6\uff1aa\u00a0=\u00a0(\u4e00KX)\/m<\/p>\n

\u5355\u6446\u5468\u671f\u516c\u5f0f\uff1a\u00a0\u00a0T=\u00a0\uff1d2\u03c0(l\/g)^1\/2\u00a0\u00a0\u00a0\u00a0(\u4e0e\u6446\u7403\u8d28\u91cf\u3001\u632f\u5e45\u65e0\u5173\uff09<\/p>\n

24\u3001\u00a0\u6ce2\u957f\u3001\u6ce2\u901f\u3001\u9891\u7387\u7684\u5173\u7cfb\uff1a\u00a0V= s\/t\uff1d\u03bbf\uff1d\u03bb\/T{\u6ce2\u4f20\u64ad\u8fc7\u7a0b\u4e2d\uff0c\u4e00\u4e2a\u5468\u671f\u5411\u524d\u4f20\u64ad\u4e00\u4e2a\u6ce2\u957f\uff1b\u6ce2\u901f\u5927\u5c0f\u7531\u4ecb\u8d28\u672c\u8eab\u6240\u51b3\u5b9a} \uff08\u9002\u7528\u4e8e\u4e00\u5207\u6ce2\uff09<\/p>\n

 <\/p>\n

\u4e56\u6700\u68d2\u4e86\uff0c\u6211\u7ed9\u4f60\u53d1\u5e03\u4e86\u54e6<\/p>\n

\u54fc\u3002\u3002\u3002\u3002\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e00\u3001\u529b\u5b66\u516c\u5f0f 1\u3001 \u00a0\u80e1\u514b\u5b9a\u5f8b\uff1a \u00a0 F = kx \u00a0 \u00a0 (x\u4e3a\u4f38\u957f\u91cf\u6216\u538b\u7f29\u91cf,K\u4e3a\u5014\u5f3a\u7cfb\u6570\uff0c\u53ea\u4e0e\u5f39\u7c27\u7684\u539f\u957f […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1848],"tags":[2170,2172,2171,826,2169],"_links":{"self":[{"href":"http:\/\/fbjia.com\/index.php\/wp-json\/wp\/v2\/posts\/1102"}],"collection":[{"href":"http:\/\/fbjia.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/fbjia.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/fbjia.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/fbjia.com\/index.php\/wp-json\/wp\/v2\/comments?post=1102"}],"version-history":[{"count":0,"href":"http:\/\/fbjia.com\/index.php\/wp-json\/wp\/v2\/posts\/1102\/revisions"}],"wp:attachment":[{"href":"http:\/\/fbjia.com\/index.php\/wp-json\/wp\/v2\/media?parent=1102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/fbjia.com\/index.php\/wp-json\/wp\/v2\/categories?post=1102"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/fbjia.com\/index.php\/wp-json\/wp\/v2\/tags?post=1102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}