• 2021-04-14
    图中所示均质圆轮质量为m,沿斜面无滑动地滚动,质心速度为。则圆轮对O点的动量矩=( )。6e615831859b947d2670bab36bcd5b47.png/ananas/latex/p/680c1d534830101674cf248bb0dd8e0317b.png