第一句话:惯性不是力 当有人问你向前或向上扔出的纸团为什么能在空中继续飞行时,你可能会脱口而出:“因为它们受到惯性的作用.”在不知不觉中,你已经犯了一个常见错误:将惯性当作一种力了.惯性究竟是什么?它与力有什么不同呢? 力是指物体对物体的作用.发生力的作用时必须要有两个物体,单独一个物体是不会发生力的作用的.力有大小、方向和作用点三个要素.惯性是指 The first sentence: Inertia is not power When someone asks you why a group of papers thrown forward or upward can continue to fly in the air, you may blurt out: “Because they are under the influence of inertia.” Unconsciously You have made a common mistake: to use inertia as a force. What is inertia and how does it differ from force? Force refers to the effect of an object on an object. There must be two An object, a single object is a force that does not occur. The force has three elements: size, direction, and point of action. Inertial means