一、问题导入忆.不驳知壳你枪是是否整注整意几过代,中电国影人的一项集体记中的革命英雄们在开枪杀鬼子锄汉奸时总是横向握枪.这是为什么呢?经过讨论分析,我们觉得这是后坐力的结果,那么后坐力又是怎么一回事呢?通过查阅资料可得,后坐力产生的原因,从根本上讲是动量守恒的结果 First, the problem into the memory. Refuted to know the shell is your whole shot whether the entire reign of several generations, CLP’s filmmakers in a collective mind in the heroes of the revolution when shooting guns hoes always lateral gun. This is why? After discussion and analysis, we think this is the result of recoil, then recoil force is one thing? Through access to information available, recoil force, basically, is the result of conservation of momentum