1结论的由来在应用动能定理解题时,我们会碰到如下问题:例题1如图1所示,一个物体从斜面上高h处由静止滑下,紧接着在水平面上滑行一段距离后停止,量得停止处相对开始运动处的水平距离为s,不考虑物体滑至斜面底端的碰撞作用,并认为斜面和水平面对物体的动摩擦因数相同,求动摩擦因数μ.图1解析:如图2所示,设斜面与水平面间夹角 1 The origin of the conclusion In the application of kinetic energy theorem to solve the problem, we will encounter the following questions: Example 1 As shown in Figure 1, an object from the slope of the high-h from the static slide down, followed by a distance in the horizontal slide after a stop , The amount of stop at the beginning of the relative movement of the horizontal distance of s, regardless of the object slipped to the bottom of the slope of the collision, and that the slope and the horizontal plane of the same dynamic friction factor, find the dynamic friction factor μ. 2, set the angle between the bevel and the horizontal plane