穿甲动能毁伤是利用带有动能侵彻体的高速动能武器，以很高的飞行速度碰撞到目标后产生的毁伤效果。
It has known well armour-piercing damage by armour-piercing warhead, yet it has discussing kinetic energy damage to hit.
动量守恒定律告诉你,碰撞后速度是多少。
So the conservation of momentum tells you what the speed is after the collision.
当处理碰撞问题，物体的速度，在碰撞前无撇号。
When we deal with collisions, the velocities of the objects before the collision are unprimed.
应用推荐