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# A merry-go-round has a radius of 3.12m and a moment of inertia of 2800kg m2 about...

A merry-go-round has a radius of 3.12m and a moment of inertia of 2800kg m2 about the vertical axis through the center. It hsd wd40 so it turns without friction. A child applied a tangential force of 14 N for 13 s. The merry-go-round starts at rest.

What is the work done by the child during the 13s?

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