gc textbook chapter 8 Rotational Motion (id: d16c1a995)

[问答题]
A uniform rod of mass M and length L can pivot 3 v3-tf ..hyk+e faebwfreely (i.e., we ignore frictix 5bvi)s,jhmliig*vu;q70 e6on) 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 anu jbe*mgsi,0l6)h; i57iqv vxgular 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.]

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