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一、问题的提出炮弹在空中飞行时其重心所经过的路线谓之“弹道曲线”。由于重力作用和空气阻力的影响,使弹道形成不均等的弧形,升弧较长而直伸,降弧则较短而弯曲。炮弹在运动过程中所受的空气阻力与炮弹的速度有关,做变加速曲线运动,抛体运动规律将不再适用。大学物理中对弹道曲线问题的研究是通过近似求解弹道曲线的动力学微分方程,得出炮弹的轨迹方程、射程、射高等参量。在思考能
I. PROBLEM PROBLEMS The route through which the center of gravity of shells explodes when flying in the air calls the “trajectory”. Due to the effect of gravity and air resistance, the trajectory is formed into an unequal arc, the ascending arc is longer and extends straight, and the arc drop is shorter and bends. The air resistance suffered by the shell during the exercise is related to the velocity of the shell. As the curve accelerates, the motion of the projectile will no longer be applicable. The study of the ballistic curve in university physics is through the approximate solution of the dynamic differential equation of the ballistic curve and obtains the trajectory equation, range and shooting height of the projectile. Thinking