关于动能定义式的商榷

THE DISCUSSION ABOUT THE DEFINITION OF KINEFIC ENERGY

力学的三大基本定理之一——动能定理,有许多不同的分支,这是由于没有弄清动能概念的定义式造成的,本文阐明,动能概念的定义式只能由质心系确定,从而达到简化动能定理的目的。

There are a lat of branches in the theorem of kinetic energy, the reason why the branches are formed is that the definition of kinetic energy is not clear. In the paper, it is put up that the definltion of kinetic energy is only determined in the Centre-of-mass frame, also, the theorem of kinetic energy is simplified.