[问答题]
A uniform rod of mass M and length L can
(op-b.yxo0urpi
le:o z:*rluhtd6x ;y/vot freely (i.e., we ignore friction) about a hinge attached to a wall, as in Fig. 8–54. The rod is held horizontally and then released. At the moment of release, determine (a) the angular acceleration of the rod, and (b) the linear accele
zlte dh/::6u x;lro *yration of the tip of the rod. Assume that the force of gravity acts at the center of mass of the rod, as shown. [Hint: See Fig. 8–21g.]

