• 2022-05-27
    图中OA杆长为L,质量不计,均质圆盘半径为R,质量为m,圆心在A点。已知杆OA以角速度\omega 绕O轴转动,如图所示。圆盘固结于OA杆上,则圆盘对定点O的动量矩为:[img=205x100]18030601a039978.jpg[/img]
    A: [img=103x46]18030601a8bbacd.png[/img]
    B: [img=50x46]18030601b12f652.png[/img]
    C: [img=103x46]18030601a8bbacd.png[/img]
    D: [img=103x46]18030601c173533.png[/img]
  • 举一反三