[问答题]
The moment of inertia of a rotating s)epu* knr es2s;6y,kmolid+ w8 ub*sh.c9gii 7+cfgjp7ty disk about an axis through its center of mass+tcyw987 c+ib*h s.pgig jfu7 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.
Post time 2025-2-18 20:00:22
