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本文运用力学理论推导出在足球比赛中，任意位置直接射门的角度，地滚球的跳跃情况和旋转球的受力情况及能量损失，并进而揭示运用力学理论的方法。
In this paper, the mechanics theory is used to derive the point of direct shooting at any position in football matches, the leap of the ball and the force and the energy loss of the rotating ball, and then reveal the method of applying mechanics theory.