Question：Why does a cat that falls from a 50-story building hit the safety net with no more speed than if it fell from the 20th story?【问题翻译】：为什么一只猫从50层楼掉到安全网上的速度并不比从20层掉到安全网的速度要大？【Answer】Because it reaches terminal velocity. The speed is limited by the air resistance of the object, that means the friction caused by the air ...
