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If there is no external force acting on ...

If there is no external force acting on a nonrigid body, which of the followhng quantities must remain constant?

A

linear momentum

B

moment of inertia

C

angular momentum

D

kinetic energy

Text Solution

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The correct Answer is:
A, C
When no external force is acting, the linear momentum and angular momentum of the body remain constant. As the body is non rigid, its moment of inertia may change and hance its `K.E.` may also change.
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