A piece of ice is kicked and slips along a horizontal ice surface with negligible resistance at a velocity of 2m/s.Does the ice experience any forward force?What is the velocity 5s later?
一块冰上滑倒被踢并且沿着水平冰表面的飞行速度在可以忽略不计的200万/秒.是否有了冰的力量吗?什么是速度5s后再打来?