Question

As mass of a particular body is constant, is moment of inertia of a body fixed
?​

Answer 1

Answer:

Moment of inertia of a body depends on the distribution of the mass of the body about an axis of rotation and, therefore, changes with the choice of the rotation axis. Hence, unlike the mass of a body, which is constant, moment of inertia of a body, which is constant, moment of inertia of body is not constant.

Explanation:

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Answer 2

Answer:

Moment of inertia of a body is the resistance to angular motion of the body.

Take a disc and try rotating it from its centre. There will be many external forces which will stop it's motion. Now hold it from its circumference and try rotating it. You will notice it's considerably difficult this time.

Moment of inertia depends on the mass of the body and the distance of axis of rotation and mass centre of the body. For any body ( fixed mass) , the axis of rotation will decide the amount of moment of inertia the body possess.

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Explanation:

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