从对质心的角动量定理的推导看质心系的特殊性

To see the specific characteristics of the centroid coordinate system from the deduction process of the angular momentum theorem relative to the center of mass

利用物理内涵简化了对质心角动量定理的推导过程,突出了质心及质心系的特殊性质,为学习者深刻认识和掌握质点组问题提供有效参考。

Using the physical connotation, this paper simplifies the derivation progress of the angular momentum theorem relative to the center of mass and highlights the specific characteristics of the center of mass and the centroid coordinate system. It also provides effective reference for the learners to deep understand and master the particle group problem.