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AP Physics 1
6.4 Conservation of Angular Momentum
6.3 Angular Momentum and Angular Impulse
5.4 Rotational Inertia
Multi-Unit
IntermediateGQMathematical21.3k
A playground merry-go-round of radius \(R = 2.00\,\text{m}\) has a moment of inertia \(I = 250\,\text{kg}\cdot\text{m}^2\) and is rotating at \(10.0\,\text{rev/min}\) about a frictionless, vertical axle. Facing the axle, a \(25.0\,\text{kg}\) 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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