The respective characteristics of problem solution methods of problem in vector mechanics and analy-tical mechanics are discussed with an example. 用一例题说明矢量力学与分析力学在解题方法中的各自特点。
A shortcoming in the relationship between the potential energy and force in the analytical mechanics textbook is pointed out, and its origin is discussed. 摘要指出了理论力学教材中分析力学部分关于势能与力的关系的一点不足之处，具体讨论了势能的表示式。
