a solid sphere is rotating about a diameter at an angular velocity omega .if it cools so that its radius reduces to 1/n of its original value.its angular velocity becomes?
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➡️use angular momentum conservation
➡️use angular momentum conservationI1w1=I2w2
➡️use angular momentum conservationI1w1=I2w2as radius reduces by 1/n , moment of inertia of sphere reduces by 1/n2, so its angular velocity increases by a factor of n2
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