牛顿第二定律对变质量问题的应用

The Using of Newton's Law of Motion Solving Mass Changing

从经典力学范围和相对论力学两方面 ,分别讨论了牛顿第二定律的应用条件 ,并从所导出的牛顿第二定律解决变质量问题的公式 。

The thesis talks about the using terms of newton's law of motion in towo aspects of classic mechanics and relativity mechanics.And the terms guides out the formula of Newton's law of motion solving mass changing,also,make examples to explain that how to use the formula of mass changing to solve real problems.