A merry-go-round with radius R and moment of inertia ICM, that can freely rotate on a frictionless vertical axle, is initially

Question

A merry-go-round with radius R and moment of inertia ICM, that can freely rotate on a frictionless vertical axle, is initially at rest. A person with mass m is initially standing at the edge of the merry- go-round, and is also initially at rest. The person begins walking counter clockwise around the edge of the merry-go-round such that the (constant) speed of the person relative to the merry-go- round is Urel. Answer the following questions:
(A) What is u, the speed of the person relative to the ground? Express your answer in terms of Urel, m, R, and ICM. DRAW A BOX AROUND YOUR FINAL ANSWER.

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