[问答题]
A uniform rod of mass M and lengt
+las3vrz4gvwyn-3zb7u*+b f h L can pivo
rvp vta u ejw9t h.-;(q+ 4z3/lmr/pnjt freely (i.e., we ignore friction) about a hinge attached to a wall, as in Fig. 8–54. The ro
z +p/tj;49/u( tvrw eql.mnpvha r3-jd 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. 8–21g.]

