虽然我们对走路习以为常,但是走路过程中的能量损失你想过吗?跑动时对膝盖、脚后跟等的震动你感觉到了吗?物理学按动能的损失情况,把碰撞分成两大类:一类是弹性碰撞,一类是非弹性碰撞。弹性碰撞是碰撞前后整个系统的动能不变的碰撞。弹性碰撞的必要条件是动能没有转化成其他 Although we are not uncomfortable with walking, have you ever thought about energy loss while walking? Did you feel the vibration of your knees, heels, etc. in physics? Physics divides collisions into two categories according to the loss of kinetic energy: Is a flexible collision, a class of inelastic collision. Elastic collision is the collision of the whole system before and after the collision of kinetic energy. The necessary condition for elastic collision is that the kinetic energy is not transformed into other