小滑块在非光滑平面上运动再研究  

Further Study of the Small Slider Movement on Non-smooth Plane

作　　者：陈钺[1] 柳建国[1] 

机构地区：[1]湖南理工学院物理与电子学院,湖南岳阳414006

出　　处：《湖南理工学院学报（自然科学版）》2015年第4期20-22,共3页Journal of Hunan Institute of Science and Technology(Natural Sciences)

摘　　要：研究滑块在非光滑平面上运动时的一种基本模型,即小滑块从斜面上滑向水平面的运动.实验加理论分析指出滑块与水平面发生了完全非弹性斜碰,故经典求解方法得出的小滑块在水平面上可运动距离L=H/m(1-mcotθ)是错误的,正确的结果是L= H/m(1-mcotθ)cos^2θ.This paper analyzes a basic model of the slider movement on non-smooth plane, which is the movement of a small slider sliding from inclined plane to horizontal plane. Through experiment and theoretical analysis, we found that a completely inelastic oblique collision happens between the slider and the horizontal plane. Accordingly, the distance of the small slider sliding on the horizontal plane L = H/m（1 - m cotθ）, which is derived from the classical solving method, is wrong, and it should be.L= H/m（1-mcotθ）cos^2θ.

关 键 词：滑动摩擦 动量定理 冲量 碰撞 

分 类 号：O313[理学—一般力学与力学基础]