[问答题]
The moment of inertia of7y4j,j h 8t vj16uuhlbnf c5(c-xt h10qxu1n8fh,i3e hv+mvh6 xg f:k a rotating solid disk about an axis through its center of maxx56t h3g1(+v1nff q -nhx8vmhfi c:h k,u c0ess 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.