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When no extemal torque acts on the body,...

When no extemal torque acts on the body, the net angular momentum of a rotating body

A

increases

B

decreases

C

increases or decreases

D

remains constant

Text Solution

Verified by Experts

The correct Answer is:
D
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  6. When the hands are stretched out from the body, the moment of inertia ...

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  7. The work done by the torque is

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  8. Rotational Kinetic energy of a body is

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  9. Rotational kinetic energy is given by

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  10. If E is a rotational kinetic energy then angular momentum is

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  12. The work done per unit time in rotational motion is given by

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  13. While rolling, the path of center of mass of an object is

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  14. In pure rolling, the velocity of the point of the rolling object which...

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  15. In pure rolling velocity of center of mass is equal to

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  16. In pure rolling, rotational velocity of points at its edges is equal t...

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  17. Sliding of the object occurs when

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  18. Sliding of the object occurs while

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  19. Sliding of the object occurs when

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  20. Sliding of the object occurs when

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