[问答题]
A uniform rod of masgmq(.wxs:)ldw2 t9 ms s M and length L can pivot freel : mhaby3f+q5hy (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 thf aqmhhby3:+5e 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
