质点组内力的功改变质心动能的条件

The Condition of Changing the Barycentric Energy of Motion by the Work of the Endogenous Force in Mass Points Group

讨论了质点组内力的功是可以改变质心动能的 。

This paper discusses that the barycentric energy of motion can be changed by the work of endogenous force in mass points group and also presents the condition for that.