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A playground merry-go-round with a moment of inertia of 300 kg m2 is rotating with no...

A playground merry-go-round with a moment of inertia of 300 kg m2 is rotating with no friction at an angular velocity of 2.3 rad/s. Sharon, whose mass is 70 kg, runs and jumps on the merry-go-round in such a way that after she jumps on it the merry-go round stops. How fast, in m/s was she running if the merry-go-round had a radius of 2.5 m? Enter only the numerical value of your answer to 2 significant figures. Do not write the units.

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