抛体运动的射程规律和射高规律如何通过实验探究出来是教学的重点。传统的实验很难保证水喷射速率的恒定,那么在保证水喷射速率不变,探究射程和射高随喷射角变化而变化,实验效果就不好。在速度相同时,若两喷射角互余,则两斜抛运动射 Projectile movement of the law of the range and shooting law how to explore through experiments is the focus of teaching. The traditional experiment is difficult to guarantee a constant water jet rate, so to ensure that the water jet rate constant, the search range and shot height with the spray angle changes, the experimental results are not good. At the same speed, if the two jet angle each other, the two oblique throwing throwing