抛体运动是体育项目中最为常见的运动形式。笔者从力学研究的视角出发,以乒乓球的弧线球技术为例,探讨其运动规律。一、受力分析任何一项运动规律的探索都离不开受力情况的分析,没有发生旋转的乒乓球在运动过程中一般要受到重力、浮力及空气阻力的影响,其中重力方向与浮力方向相反,空气阻力的方向与乒乓球的速度方向相 Projectile exercise is the most common form of exercise in sports. From the perspective of mechanics research, the author takes the ping-pong ball as an example to discuss its movement law. First, the force analysis Any exploration of sports laws are inseparable from the analysis of the force situation, there is no rotation of the table tennis during the exercise are generally subject to gravity, buoyancy and air resistance, of which the direction of gravity and buoyancy direction On the contrary, the direction of air resistance and table tennis speed phase