• 2022-05-30
    如图所示,已知曲柄OA长r,以角速度[img=9x11]1802e73f22b72dd.jpg[/img]转动,均质圆盘半径为R,质量为m,在固定水平面上做纯滚动,则图示瞬时圆盘的动能为( )。[img=507x310]1802e73f302b59d.jpg[/img]
    A: [img=52x33]1802e73f39992ea.jpg[/img]
    B: [img=52x33]1802e73f42c646e.jpg[/img]
    C: [img=40x17]1802e73f4b9b9d7.jpg[/img]
    D: [img=52x33]1802e73f53c2f24.jpg[/img]
  • 举一反三