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

[问答题]
A person stands on a pla*rjg(nb cnc7s7:nk akl 04 6dutform, initially at rest, ofa(.fub-yfi (.bi i9fu 2tj+ that can rotate freely without friction. The moment of inertia of u2iito .9(f.bfja +f- uf(iy bthe person plus the 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