关于刚体定轴转动中力矩作功的推导商榷

Discuss on deduction process of work acted by moment from a rigid body in fixed-axis rotation

关于《大学物理》的教材 ,刚体定轴转动力矩作功的公式推导多有不明确和值得探讨的问题 ,如推导中的依据是什么、刚体与质点的区别在哪里 ,内力起什么作用 ,怎样与转动的动能定理相自洽。

Of the textbook of college physics,there are something uncertain and deserve discussing,such as what's the basic theory the deduction relied on,what's the difference of a rigid body and a particle,what's the function of inner force,and what's the relationship with kinetic energy theorem of rotation status.This thesis presents some of my personal opinion.