[问答题]
A uniform rod of mass M and length L can pivot freely (i.e., we ignore f
m; *arae80wdw(/ eetifg86w( p3efvgx np0. irictio
6fz go9;ujyv 8p83kfin) 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 acceleration 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
3g yjfzp u9ikf8o v86;–21g.]

