| 变质量质点的动能定理与软绳问题 |
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| 引用本文： | 石东平. 变质量质点的动能定理与软绳问题[J]. 大学物理, 1999, 18(3): 22-23,27 |
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| 作者姓名： | 石东平 |
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| 作者单位： | 重庆师范高等学术物理系,重庆永川,402168 |
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| 摘 要： | 给出变量质点的动能定理和一对反推内力作功的表达式，并由此给出软绳问题的正确解。
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| 关 键 词： | 变质量质点 动能定理 反推内力作功 软绳问题 |
A THEOREM ON KINETIC ENERGY FOR VARIABLE MASS-POINT AND SOFT-ROPE QUERY |
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| Shi Dongping. A THEOREM ON KINETIC ENERGY FOR VARIABLE MASS-POINT AND SOFT-ROPE QUERY[J]. College Physics, 1999, 18(3): 22-23,27 |
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| Authors: | Shi Dongping |
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| Abstract: | A theorem on kinetic energy for variable mass-point and formula of work of recoil internal forces are given and the reason of soft-rope query is discussed. |
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| Keywords: | variable mass-point theorem of kinetic energy work of recoil internal forces soft-rope query |
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