一种处理力学问题的简便方法

One Simple Method to Deal with Mechanical Problem

利用朗道《力学》提供的一种方法 ,在对运动方程不求解的情况下 ,得出运动性质的某些重要结论 .

This paper makes use of a method offered ty Landau in Mechanics to get some important condusions of character in motion under the eircumstances of not extracting a root to equation of mation.