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A merry-go-round on a playground consists of a horizontal solid disk with a weight of 795...

A merry-go-round on a playground consists of a horizontal solid disk with a weight of 795 N and a radius of 1.58 m. A child applies a force 49.5 N tangentially to the edge of the disk to start it from rest. What is the kinetic energy of the merry-go-round disk (in J) after 2.90 s?

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