gc textbook chapter 8 Rotational Motion (id: d16c1a995)

[问答题]
A uniform rod of mass M +,zjwxtacpy57oa u 6 8tz8;l k*es;e cct7vu;and leck 4yu ig t9lt+,tu q82hhdv.j:*0xbx ngth L 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 linea*i0qxtu+,ghkt ch: uxybd48 vl jt29.r 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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