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A 3-m-diameter merry-go-round with a mass of 270 kg is spinning at 20 rpm. John runs...

A 3-m-diameter merry-go-round with a mass of 270 kg is spinning at 20 rpm. John runs around the merry-go-round at 5.0 m/s, in the same direction that it is turning, and jumps onto the outer edge. John’s mass is 33 kg . What is the merry-go-round's angular speed, in rpm, after John jumps on?

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