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教科书的“反冲运动”一节中,通过大量实例从动量守恒的角度介绍了反冲运动的现象、原理及应用,但是有些同学对反冲运动的理解还不是很透彻,请看下面两例.
The “recoil movement” section of textbooks introduces the phenomenon, principle and application of recoil movement through a large number of examples from the point of conservation of momentum. However, some students’ understanding of recoil movement is not very thorough. See below Two cases.