Question: A merry go round ( a disk I = 1 / 2 MR ^ 2 , M = 2 0 0 kg , R =

A merry go round (a disk I=1/2MR^2, M=200kg, R=2) rotates at 0.4 rad/s. A child with a mass of 60 kg is dropped onto the merry go round at a distance of 1.5 m from the axis of rotation. How fast is the child moving after it comes to turn the merry go round?

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