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A horizontal 810-N merry-go-round of radius 1.40 m is started from rest by a constant horizontal force of 45 N applied t...

A horizontal 810-N merry-go-round of radius 1.40 m is started from rest by a constant horizontal force of 45 N applied tangentially to the merry-go-round. Find the kinetic energy of the merry-go-round after 4.0 s. (Assume it is a solid cylinder. Also assume the force is applied at the outside edge.)

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