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A carousel has a radius of 1.70 m and a moment of inertia of 130 kg...

A carousel has a radius of 1.70 m and a moment of inertia of 130 kg · m2 . A girl of mass 46.5 kg is standing at the edge of the carousel, which is rotating with an angular speed of 3.20 rad/s. Now the girl walks toward the center of the carousel and stops at a certain distance from the center d. The angular speed of the carousel is now 5.2 rad/s. How far from the center did the girl stop?

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Answer #1

From the law of conservation of the angular momentum, Imo I +m2 md2 139:1(e5/u 0)10390,10 130 +(46.5) (1.70) )(3.20) 5.2 32.6

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