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A person stands, hands at side, on a platform that is rotating at 1.24 rev/second. If the person now raises his arms to a horizontal position, the...

A person stands, hands at side, on a platform that is rotating at 1.24 rev/second. If the person now raises his arms to a horizontal position, the speed of rotation decreases to 0.53 rev/second. By what factor has the moment of inertia changed?

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Let initial angular momentum = I1 Let final angular momentum = I2 Using... View the full answer

The moment of inertia has... View the full answer

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