<\/div>\n\u5b66\u751f\u4e00\u822c\u5bb9\u6613\u89c2\u5bdf\u5230\u5404\u4e2a\u70b9\u6c34\u5e73\u8ddd\u79bb\u76f8\u540c\uff082\u5404\u7f51\u683c\uff09\uff0c\u800c\u56f0\u60d1\u6e90\u81ea\u7ad6\u76f4\u65b9\u5411\u95f4\u9694\u7adf\u7136\u662f1\u30012\u30013\u548c4\u4e2a\u7f51\u683c\uff0c\u901a\u5e38\u5b66\u751f\u719f\u7ec3\u7684\u662f\u7ad6\u76f4\u65b9\u5411\u81ea\u7531\u843d\u4f53\u8fd0\u52a8\uff0c\u76f8\u540c\u65f6\u95f4\u95f4\u9694\u7684\u4f4d\u79fb\u6bd4\u4f8b\u5e94\u8be5\u662f1\u30013\u30015\u30017…\u66f4\u5927\u7684\u8ff7\u60d1\u662f\u7b2c\u4e00\u4e2a\u70b9\u660e\u660e\u6807\u8bb0\u7684\u662fO\uff0c\u8fd9\u4e2a\u4e5f\u8ba9\u5b66\u751f\u5148\u5165\u4e3a\u4e3b\u5730\u65ad\u5b9a\u8fd9\u662f\u5e73\u629b\u8fd0\u52a8\u7684\u521d\u59cb\u70b9\u3002<\/p>\n
\u56f0\u60d1\u5904\u5f80\u5f80\u5c31\u662f\u7a81\u7834\u53e3\uff0c\u7ebf\u7d22\u4e5f\u5c31\u5728\u7ad6\u76f4\u65b9\u5411\u4f4d\u79fb\u7684\u5dee\u503c\uff0c\u5229\u7528\u5300\u53d8\u901f\u8fd0\u52a8$$\\Delta{S}=aT^2$$\uff0c$$\\Delta{S}=0.1m$$\uff0c\u6c34\u5e73\u65b9\u5411$$V_{0}T=0.2m$$\uff0c\u6c42\u5f97$$V_{0}=2m\/s$$…\u627e\u5230\u4e86\u4e71\u7ef3\u5b50\u7684\u5934\u5c31\u597d\u529e\u4e86\u3002
\n
\n\u5c31\u4ee5A\u70b9\u4e3a\u4f8b\uff0c\u6c34\u5e73\u901f\u5ea6\u524d\u9762\u5df2\u6c42\u5f97\uff0c\u800c\u5bf9\u4e8e\u7ad6\u76f4\u901f\u5ea6\u65b9\u6cd5\u5f88\u591a\uff0c\u66f4\u76f4\u63a5\u7684\u8be5\u662f\u5229\u7528A\u70b9\u4e3aO\u548cB\u7684\u4e2d\u95f4\u65f6\u523b\uff0c\u5229\u7528$$V_{\\frac{t}{2}}=\\overline{V}=\\frac{S}{t}$$\u6c42\u5f97$$V_{y}=\\frac{0.3m}{0.2s}$$\uff0cA\u70b9\u7684\u5408\u901f\u5ea6$$V_{A}=\\sqrt{{V_{0}}^2+{V_{y}}^2}$$ …\u540c\u7406\u53ef\u4ee5\u6c42\u51fa\u5176\u4ed6\u70b9\u7684\u77ac\u65f6\u901f\u5ea6\u3002<\/p>\n
<\/div>\n\u56fe\u793a\u4e2d\u7ed9\u51faO\u3001A\u3001B\u3001C\u3001D\u5404\u70b9\u7684\u901f\u5ea6\u5206\u89e3\uff0c\u4ece\u8fd0\u52a8\u5408\u6210\u7684\u89d2\u5ea6\u770b\u5f85\u5404\u70b9\u5408\u901f\u5ea6\uff0c\u4ee5\u53ca\u5404\u70b9\u901f\u5ea6\u589e\u91cf\u7684\u56fe\u793a\u3002\u77e2\u91cf\u8fd0\u7b97\u53ef\u4ee5\u4ece\u4e09\u89d2\u5f62\u6cd5\u5219\uff0c\u6216\u662f\u6c34\u5e73\u5300\u901f\u76f8\u6d88\uff0c\u800c\u6240\u8c13\u589e\u91cf\u4ec5\u4ec5\u662f\u7ad6\u76f4\u65b9\u5411\uff0c$$\\Delta{V}=g\\Delta{t}$$\u3002\u5f53\u7136\u4e5f\u53ef\u4ee5\u628a\u901f\u5ea6\u7684\u5206\u89e3\u66ff\u4ee3\u6210\u76f8\u540c\u65f6\u95f4\u95f4\u9694\u5185\u4f4d\u79fb\u7684\u77e2\u91cf\u5dee\u8fd0\u7b97\uff0c$$\\Delta{S}=g{T}^2$$\u3002<\/p>\n
<\/div>\n\u51e0\u4f55\u753b\u677f\u81ea\u5e26\u7684\u8fc7\u7ed9\u5b9a\u4e94\u70b9\u7ed8\u5236\u5706\u9525\u66f2\u7ebf\u7684\u5de5\u5177\uff0c\u5229\u7528\u8fd9\u4e00\u529f\u80fd\u76f8\u5bf9\u5bb9\u6613\u7f16\u5236\u548c\u5206\u6790\u6b64\u7c7b\u5e73\u629b\u8fd0\u52a8\u7684\u95ee\u9898\u3002\u4e0b\u56fe\u7ed9\u51fa\u4e86\u5b8c\u6574\u7684\u629b\u7269\u7ebf\u56fe\u793a\uff0c\u53ef\u4ee5\u6e05\u6670\u770b\u5230\u4ece\u771f\u6b63\u7684\u8d77\u59cb\u70b9\u7684\u7ad6\u76f4\u8ddd\u79bb\u76f8\u540c\u65f6\u95f4\u5185\u4f4d\u79fb\u7684\u5947\u6570\u6bd4\u4f8b\u7684\u901a\u5e38\u60c5\u51b5\u3002
\n\u5bf9\u4e8e\u5e73\u629b\u8fd0\u52a8\uff0c\u4e00\u76f4\u4ee5\u6765\u5c31\u662f\u901a\u8fc7\u7269\u7406\u7684\u65b9\u6cd5\u89e3\u51b3\u6570\u5b66\u7684\u95ee\u9898\uff0c\u60f3\u6765\u53ef\u4ee5\u5b8c\u5168\u53ef\u4ee5\u901a\u8fc7\u629b\u7269\u7ebf\u672c\u8eab\u7684\u89c4\u5f8b\uff0c\u843d\u5b9e\u5230\u7269\u7406\u73b0\u8c61\u4e0a\u6765\uff0c\u5145\u5206\u4f53\u73b0\u6570\u5b66\u7684\u5de5\u5177\u6027\u3002\u6bd4\u5982$$y=ax^2$$\u7684\u5bfc\u6570\u4e3a$$y’=2ax$$\uff0c$$\\frac{y_{0}}{x_{0}}=ax_{0}=\\frac{1}{2}y’$$\uff0c\u5982\u6b64\u4e0d\u96be\u7406\u89e3\u5e73\u629b\u8fd0\u52a8\u901f\u5ea6\u4e0e\u6c34\u5e73\u65b9\u5411\u5939\u89d2\u7684\u6b63\u5207\u4e3a\u4f4d\u79fb\u4e0e\u6c34\u5e73\u5939\u89d2\u6b63\u5207\u4e8c\u500d\u7684\u4e8b\u5b9e\uff0c\u4e5f\u5c31\u4e0d\u96be\u7406\u89e3\u76f8\u5f53\u4e8e\u4ece\u4e2d\u70b9\u521d\u5c04\u7684\u7b49\u6548\u4e86\u3002<\/p>\n
\u800c\u5bf9\u5e94\u4e00\u822c\u4e8c\u6b21\u51fd\u6570$$y=ax^2+bx+c$$\u540c$$x=\\frac{1}{2}at^2+V_{0}t+x_{0}$$\uff0c\u4e8c\u6b21\u51fd\u6570\u672c\u8eab\u5c31\u5177\u6709$$\\Delta{y}=cons.$$\uff0c\u5bf9\u5e94\u7269\u7406\u4e0a\u7684$$S_{n}-S_{m}=(n-m)aT^2$$\u3002\u65e2\u7136\u7269\u7406\u4e0a\u5e38\u4ece\u7269\u7406\u7684\u89d2\u5ea6\u7406\u89e3\u6570\u5b66\u7684\u542b\u4e49\uff0c\u5f53\u7136\u4e5f\u53ef\u4ee5\u5728\u7269\u7406\u4e0a\u56de\u5f52\u5230\u6570\u5b66\u672c\u8eab\u7684\u89c4\u5f8b\u518d\u8d4b\u4e88\u7269\u7406\u7684\u5185\u6db5\u3002\u8fd9\u8be5\u662f\u4e92\u8865\u7684\u4e24\u79cd\u65b9\u5f0f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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