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A dad pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from...

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Physics

A dad pushes tangentially on a small hand-driven merry-go-roundand is able to accelerate it from rest to a frequency of 15 rpm in11.0 s . Assume the merry-go-round is a uniform disk of radius 2.5m and has a mass of 560 kg, and two children (each with a mass of25 kg) sit opposite each other on the edge.

Part A

Calculate the torque required to produce the acceleration,neglecting frictional torque.

Express your answer to two significant figures and include theappropriate units.

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Part B

What force is required at the edge?

Answer & Explanation Solved by verified expert
4.4 Ratings (763 Votes)
Time period T 11 secInitial angular speed of the merrygoround 1 0 radsRotational speed of the merrygoround after 11 sec N2 15 rpmAngular speed of the merrygoround after 11 sec 22    See Answer
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