Amerry-go-round is a common piece of playground equipment. a 3.0-m-diameter merry-go-round with a mass of 300 kg is spinning at 16 rpm . john runs tangent to the merry-go-round at 5.4 m/s , in the same direction that it is turning, and jumps onto the outer edge. john's mass is 30 kg. what is. what is the merry-go-round's angular velocity, in rpm, after john jumps on?
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