Question: A playground merry - go - round with a radius of 1 . 8 m and a rotational inertia of 1 2 0 kg m

A playground merry-go-round with a radius of 1.8 m and a rotational inertia of 120 kg m2is stationary. A child with a mass of 25 kg gets on and walks around the edge of the merry-go-round. How many revolutions around the merry-go-round must the child make in order for the merry-go-round to make one full revolution?

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