A playground merry-go-round has radius 240 m and a moment, Ask an Expert

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A playground merry-go-round has radius 2.40 m and a moment ofinertia of 2100 kgm^2 about a vertical axle through its center, andturns with negligible friction.

A. A child applies an 18.0-N force tangentially to the edge ofthe merry-go-round for 15.0 s. If themerry-go-round is initially at rest, what is its angularspeed after this 15.0-s interval?

B. How much work did the child do on the merry-go-round?

C. What is the avergae power supplied by the child?

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Category:- Physics
Reference No.:- M91094685

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