Mathematics, 31.07.2019 18:30 alondrasanchezvillan

Aplayground merry-go-round of radius r = 1.80 m has a moment of inertia i = 255 kg · m2 and is rotating at 9.0 rev/min about a frictionless vertical axle. facing the axle, a 24.0-kg child hops onto the merry-go-round and manages to sit down on the edge. what is the new angular speed of the merry-go-round?

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