动能定理与动量定理在应用时,由于不必考虑过程中的细节,因而具有一定的优越性,在高三的复习中是提高学生物理素质的能力点。下面这道题的求解,恰好能说明这两个定理在使用过程中所体现出来的优越性。例.光滑水平地面上放着一辆静止的两端有挡板的小车,车长 Kinetic energy theorem and momentum theorem in the application, because they do not have to consider the details of the process, which has some advantages, in the third year of review is to improve the physical ability of students. The solution of the following problem just shows the superiority of these two theorems in the process of using. For example, a stationary, baffled car at both ends, a car captain, stood on a smooth, level surface