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坐标法解“人船模型” 被引量:2

A Solution of "Man-ship Model" by Using Coordinate Method
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摘要 人船模型是动量守恒定律中的一个典型物理模型,它涉及平均速度、动量、动量守恒、矢量合成等知识点,题型多样,计算时要考虑各个位移矢量的方向.通过分析各种类型的人船模型,建立坐标,最终得出人船模型的简洁普遍公式.应用坐标法解决"人船模型"类问题.分析、归纳、总结.得到解决"人船模型"问题的简洁、普遍公式."人船模型"公式能使"人船模型"类问题容易获得解决,帮助人们有效地学习. A Man-ship Model is a typical physical model of the law of conservation of momentum.It relates to velocity,momentum and the law of conservation of momentum.So there are all kinds of problems about it.Meanwhile,a direction of displacement should be considered when we solve them.In this paper,through analyzing all sorts of questions about Man-ship Model and setting up coordinate,we can draw a common,neat physical formula.The purpose of this paper is to get a new way to solve all sorts of problems of 'Man-ship Model'.Ways of analysis,induction and inference have been adopted based on the thought of physics model.At last,we get a neat,common formula of 'Man-ship Model' and the formula can make this type of problems easy to be solved and help people study effectively.
出处 《河北北方学院学报(自然科学版)》 2008年第A03期17-20,23,共5页 Journal of Hebei North University:Natural Science Edition
基金 贵州师范大学学生科研研究基金重点资助项目(200803)
关键词 动量守恒 人船模型 坐标 矢量 the law of conservation of momentum Man-ship model coordinate vector
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