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A person stands at the center of a turntable, holding his arms extended horizontally with a...

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Physics

A person stands at the center of a turntable, holding his armsextended horizontally with a 1.5 kg dumbbell in each hand. He isset rotation about a vertical axis, making one revolution in 2seconds. Find the new angular velocity if he pulls the dumbbells into his middle. His moment of inertia (without dumbbells) is 3 kgm2when his arms are out stretched, dropping to 2.2 kgm2 when hishands are at his middle. The dumbbells are 1 m from the axisinitially and 0.2 m from it when moved to his middle.

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