碰撞问题中的动量和角动量守恒辨析

doi:10.16854/j.cnki.1000-0712.230039

College Physics ›› 2023, Vol. 42 ›› Issue (10): 2-.doi: 10.16854/j.cnki.1000-0712.230039

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Analysis of conservation of momentum and angular momentum in collision problems

QIU Hong-mei, QIN Ji-hong, XU Mei, LIU Li-hua

1. Department of Applied Physics, University of Science and Technology Beijing, Beijing 100083, China; 2. Department of Physics, University of Science and Technology Beijing, Beijing 100083, China

Received:2023-02-13 Revised:2023-04-07 Online:2023-11-01 Published:2023-11-06

Abstract

Abstract: In this paper, the most typical collision problem between an object and a slender bar in rigid body mechanics is taken as an example, and the application conditions of the law of conservation of momentum and conservation of angular momentum are discussed from the perspective of force analysis, in order to deepen the understanding of the two conservation laws, hoping to play a certain reference role for teachers' teaching or students' self-study

Key words: rigid body mechanics, collision, conservation of momentum, conservation of angular momentum

QIU Hong-mei, QIN Ji-hong, XU Mei, LIU Li-hua. Analysis of conservation of momentum and angular momentum in collision problems[J].College Physics, 2023, 42(10): 2-.

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Analysis of conservation of momentum and angular momentum in collision problems

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