动量守恒定律的应用兰州一中化得福动量守恒定律是解决物体组动力学问题的一个重要武器，因为应用此定律时可以不考虑在内力作用下所发生的复杂变化过程，只须考虑变化前后物体组的总动量。但是学生在应用定律时常出现错误，这主要是对定律的使用条件、主要目的和物理实质... Application of the Law of Conservation of Momentum The law of conservation of momentum of Lanzhou No. 1 Chemicals is an important weapon to solve the dynamics of the object group, because the application of this law can not consider the complex changes that occur in the internal force, only need to consider before and after changes The total momentum of the object group. However, students often make mistakes when applying the law, which is mainly the use conditions of the law, the main purpose and the physical essence...