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Angular Analogue of Linear Momentum

A solid spher...

Question

A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same, which one of the following will not be affected ?

A

Angular velocity

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B

Angular momentum

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C

Moment of Inertia

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D

Rotational kinetic energy

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Solution

The correct option is B Angular momentum
There is neither an external force nor an external torque in free space. So, angular momentum is conserved.

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