[问答题]
The moment of inertia of a rotating solid disk about an axiv 1a )i3aj1zgfg4u7g 1mcgczs00+/k,zlaa fys through its cente1a 6s k4of2 qtvi//yjt,6vmxer of mass q26sm, xayjtvk6//o4e1vtifis $\frac{1}{2}WR^2$ (Fig. 8–21c). Suppose instead that the axis of rotation passes through a point on the edge of the disk. Will the moment of inertia be the same, larger, or smaller?
参考答案:
The moment of inertia will
increase, because most the mass of the disk will be further from the axis of
rotation than it was with the original axis position.