Rolling Down an Incline

沿斜面滚动

In rolling without slipping through the distance L down the incline, the height of the rolling object changes by "h". Hence the gravitational potential energy changes by mgh. The velocity of the center of mass depends upon the particular form of the moment of inertia.

在无滑动滚动下沿斜面滚动距离L时，滚动物体的高度变化为'h'。因此，重力势能变化为mgh。质心的速度取决于转动惯量的具体形式。