gc textbook chapter 8 Rotational Motion (id: 7234fc78e)

[问答题]
A person stands on a plnb*r1 .zoj 9ce(qs lz9atform, initially at rest, thwi j ;p:4qhde,p 6qpl0at can rotate freely without friction. The moment of inertia of the person plus ,ip6 j4:;wh0 qppedlqthe platform is $I_P$ The person holds a spinning bicycle wheel with its axis horizontal. The wheel has moment of inertia $I_W$ and angular velocity $\omega_W$ What will be the angular velocity $\omega_W$ of the platform if the person moves the axis of the wheel so that it points (a) vertically upward, (b) at a 60º angle to the vertical, (c) vertically downward? (d) What will $\omega_P$ be if the person reaches up and stops the wheel in part (a)?

参考答案:



本题详细解析: 暂无