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初中物理中,许多物理量的值要用“0”表示,不同物理量的“0”值,其物理意义是不同的,下面举例谈谈这个问题。速度为“0米/秒”表示物体运动的快慢与参照物的速度完全相同,即表示物体相对
In the junior high school physics, many physical quantities are represented by “0”, and the physical values of different physical quantities are different. The following example will talk about this problem. A speed of 0 m/s means that the speed of the object is exactly the same as the speed of the reference object.