[问答题]
A uniform rod of mass M and lengt a5u1j ro49mzmh L can p 1 a1*r.yhsmhqivot freely (i.e., we ignore friction) about a hinge a*syh11q m r.ahttached 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. 8–21g.]
Post time 2025-2-18 20:00:22
