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动量定理属高中选修课的内容。虽然动量定理“源”于牛顿第二定律,但它不仅适用于恒力情形,也适用于变力情形,尤其在解决受冲力作用的打击、碰撞等问题时,它比牛顿第二定律更为方便。我在处理此节教材时,做了以下几方面的工作。
The momentum theorem is a high school elective course. Although the momentum theorem “originates” in Newton’s second law, it applies not only to the constant force case but also to the case of variable force. Especially when solving problems such as impacts and collisions caused by impact, it is more than Newton’s second law. Convenience. When I dealt with this section of the teaching materials, I did the following tasks.