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A dancer on ice spins faster when she fo...

A dancer on ice spins faster when she folds her arms due to

A

increase in energy and increase in angular momentum

B

decrease in friction at the skates

C

constant angular momentum and increase in kinetic energy

D

increase in kinetic energy and decrease in angular momentum.

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Verified by Experts

The correct Answer is:
C
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MOTION-ROTATIONAL MOTION -Exercise - 2
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  2. A ring of mass 10 kg and diameter 0.4 meter is rotating about its geom...

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  7. A particle of mass m is rotating in a plane in circular path of radius...

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  8. A fan of moment of inertia 0.6 kg xx "metre"^2 is to run upto a worki...

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  9. Two bodies with moment of inertia I1 and I2 (I1 gt I2) have equal angu...

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  10. If I(1),I(2) and I(3) are the moments of inertia about the natural axi...

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  11. A dancer on ice spins faster when she folds her arms due to

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  12. Which quantity is not directly related with rotational motion

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  13. Statement-I: If the earth expands in size without any change in mas, t...

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  14. Statement-I: A body moving in a straight line parallel to Y-axis can h...

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  15. Statement-I: When a planet is at maximum distance from the sun, its sp...

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  16. Statement-I : When a sphere and a solid cylinder are allowed to roll d...

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  17. Statement-I : Angular velocity is a characteristic of the rigid body a...

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  18. Statement I : If bodies slide down an inclined plane without rolling, ...

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  19. Statement-1 : A wheel moving down a perfectly frictionless inclined pl...

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