12. Rotational Kinematics
Equations of Rotational Motion
5:51 minutes
Problem 10.39
Textbook Question
Textbook Question(II) Assume that a 1.00-kg ball is thrown solely by the action of the forearm, which rotates about the elbow joint under the action of the triceps muscle, Fig. 10–57. The ball is accelerated uniformly from rest to 8.5 m/s in 0.38 s, at which point it is released. Calculate
(a) the angular acceleration of the arm, and
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