当前,中学“研究平抛物体的运动”的实验目的是通过描出平抛物体运动的轨迹,进而求出平抛物体的初速度。从教科书的实验内容可知,为了通过实验数据求平抛物体的初速度,实验首先要描出平抛物体运动的轨迹。而描出运动的轨迹的工作好坏将直接影响到所求的初速度是否真实有效。教 At present, the purpose of the experiment of “researching the motion of plane-throwing objects” in middle schools is to find out the initial velocity of objects thrown by planes by tracing the trajectory of the plane-throwing objects. From the experimental content of the textbook, we can see that in order to obtain the initial velocity of the flat paraboloid through the experimental data, the experiment first describes the trajectory of the plane-throwing object motion. The work of tracing the trajectory of the movement will directly affect whether the required initial speed is real and effective. teach