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动量守恒定律是高考的重点,但是很多的考生对于定律的使用总是出现这样或那样的问题,究其原因就是没有深刻理解动量守恒定律的实质,就动量守恒的理解应该注意以下2点.
The law of conservation of momentum is the focus of the college entrance examination, but many candidates always have problems with one or the other. The reason is that there is no deep understanding of the essence of the law of conservation of momentum and the following two points should be paid attention to.