gc textbook chapter 8 Rotational Motion (id: d16c1a995)

[问答题]
A uniform rod of mass/5ckfhl xp. g( M and length z2teaff 3kfc1 m .9,gmL can pivot freely (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 the moment of release, determine (a) the angular acceleration of the rod, and (b) the linear acceleration of the tip of the rod. Assume t1f,z39amef tgm2 .cfkhat the force of gravity acts at the center of mass of the rod, as shown. [Hint: See Fig. 8–21g.]

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