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A disk-shaped merry-go-round of radius 2.43 and mass 165 rotates freely with an angular speed of 0.671 . A 57.4 person running tangential to the rim of the merry-go-round at 3.11 jumps onto its rim and holds on. Before jumping on the merry-go-round, the person was moving in the same direction as the merry-go-round's rim what is the final angular speed of the merry go around

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