1对两种实验装置的情形分析这个实验中,是要知道入射小球和被碰小球的相关速度的,而在高中物理中,能方便地测出瞬时速度的方法还不多,其中最简便的就是由相关量表示平抛物体初速度的方法.这里正是应用了这个方法,并创造性地用对应的位移来表示速度,从而使实验得以顺利进行.为了 One case analysis of two kinds of experimental devices In this experiment, it is necessary to know the relative speeds of the incident ball and the impacted ball, but in the high school physics, there are not many methods that can easily measure the instantaneous speed. It is simply a method of representing the initial velocity of an object by a paraboloid. Here, this method is applied, and the corresponding displacement is used to represent the velocity creatively, so that the experiment can be performed smoothly.