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Angular Analogue of Linear Momentum

The angular m...

Question

The angular momentum of a particle rotating with a central force is constant due to

A

constant linear momentum

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B

zero torque

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C

constant torque

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D

constant force

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Solution

The correct option is B zero torque
Centre forces passes through axis of rotation so torque is zero. If no external torque is acting on a particle, the angular momentum of a particle is constant.

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