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看到此题目 ,你立即会想到滑动摩擦力存在于发生相对滑动的两个相互接触的物体之间 ,而静摩擦力存在于相对静止的具有相对运动趋势且相互接触的两个物体之间 ,它们不能同时存在是显而易见的 .但是 ,在高三物理复习当中 ,我们经常遇到下面一些问题 ,对这些问题 ,有相当一部分学
Seeing this problem, you immediately think that the sliding friction exists between two mutually touching objects where relative sliding occurs, and the static friction force exists between the relatively stationary two objects that have a relative movement tendency and are in contact with each other. It cannot be seen that it is obvious at the same time. However, in the third year of physical review, we often encounter the following problems.