[问答题]
The moment of inertia of a n tvji l j(em4rw5m96*rotating solid di*wxl tacp5:h/cv q h 2ev44u3vsk about an axis through its center of mas:h l42 4 vhc5/v *pwxuqe3atcvs is $\frac{1}{2}WR^2$ (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.