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When the hands are brought closer to the...

When the hands are brought closer to the body, the angular velocity of the ice dancer

A

decreases

B

inreases

C

constant

D

may decreases or increases

Text Solution

Verified by Experts

The correct Answer is:
B
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FULL MARKS-MOTION OF SYSTEM OF PARTICLES AND RIGID BODIES-ADDITIONAL QUESTIONS SOLVED - I ( MULTIPLE CHOICE QUESTION)
  1. When no extemal torque acts on the body, the net angular momentum of a...

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  2. Moment of inertia of a body is proportional to

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  3. When the hands are brought closer to the body, the angular velocity of...

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  4. When the hands are stretched out from the body, the moment of inertia ...

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  5. The work done by the torque is

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  6. Rotational Kinetic energy of a body is

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  7. Rotational kinetic energy is given by

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

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  9. The product of torque acting on a body and angular velocity is

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

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

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

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

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

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  15. Sliding of the object occurs when

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  16. Sliding of the object occurs while

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  17. Sliding of the object occurs when

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  18. Sliding of the object occurs when

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  19. In sliding, the resultant velocity of a point of contact acts along

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  20. In slipping, the resultant velocity of a point of contact acts along

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