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大学物理角动量和力矩的问题

2025-03-15 13:34:51

推荐回答（1个）

回答1：

L定义为r与p的矢积，并不是非常直观的物理量这就是为了研究转动而人为定义的力学量。所以我觉得这是为了理论研究而人为定义的物理量，α是角加速度，形式上和牛顿第二定律完全一致，M定义为r与F的矢积;dt。再定义转动惯量以后，转动方程就能写成M=Jα=dL/

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