如图所示,质量为m、长为l的均质细杆OA绕O轴在铅垂面内作定轴转动。 o-|||-已知某瞬时杆的角速度为w,则杆在图示瞬时动量、动能分别为 __ .-|||-4-|||-(5.0分)-|||-=0 .=dfrac (1)(3)m(l)^2(omega )^2-|||-=dfrac (1)(2)m/(v)_(0), .=dfrac (1)(6)m(l)^2(omega )^2-|||-=dfrac (1)(2)m/(w)_(0) .=dfrac (1)(3)m(l)^2(omega )^2-|||-=0. .=dfrac (1)(6)m(l)^2(omega )^2-|||-A B