12-147. A boy sits on a merry-go-round so that he is
Chapter 12, Problem 12-147(choose chapter or problem)
12-147. A boy sits on a merry-go-round so that he is always located at r = 8 ft from the center of rotation. The merry-go-round is originally at rest.and then due to rotation the boy's speed is increased at 2 ft/s2. Determine the time needed for his acceleration to become 4 ft/s2.
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