“研究平抛物体运动”这个实验在中师物理实验中，是个很重要的实验。通过做这个实验，能够验证平抛物体运动理论的正确性，也就是能够知道平抛物体运动的轨迹是什么样的，能从轨迹上的任何一点求出平抛物体的初速度，明确初速度与平抛物体运动轨迹的关系。但是，课本和实验报 The “Study on the motion of plane objects” experiment is a very important experiment in the physics experiment of the Central Normal University. By doing this experiment, we can verify the correctness of the motion theory of plane objects, that is, we can know what the trajectory of the plane object is. We can find the initial velocity of the plane object from any point on the trajectory, and we can determine the initial velocity. Relationship with the trajectory of a plane object. However, textbooks and experiments