gc textbook chapter 8 Rotational Motion (id: d16c1a995)

[问答题]
A uniform rod of mass M and length L can pivotny)e *vsrz.gpu9eqy* c035n j freely (i.e., we ignore frictiofw ;li.wak0 h9r v )vr8j68awon) 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 liner8.wk0fj i)o8arw a9v wv6lh;ar 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.]

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