gc textbook chapter 8 Rotational Motion (id: d16c1a995)

[问答题]
A uniform rod of mass M and length L can pivot freely (i.e., we iu t-9sl r-wve*9d vh*ignore frictionrf 4irwp2:ju 3) about a hinge attached tor u: fjwi34p2r 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.]

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