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A solid cylinder of mass 2kg and radius ...

A solid cylinder of mass 2kg and radius 20 cm is rotating about its axis with a frequency `(10//pi)Hz` .The rotational kinetic energy of the cylinder is :

A

4 J

B

8 J

C

16 J

D

32 J.

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JBD PUBLICATION-MOTION OF SYSTEM OF PARTICLES AND RIGID BODY-EXAMPLE
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  7. What is the direction of angular momentum of a body?

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  8. Is centre of mass a reality?

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  9. Which points on a cylinder rolling over a surface move rectilinearly ?

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  17. Define centre of mass.

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  18. What is rotational analogue of mass?

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  19. Is radius of gyration of a body a constant quantity?

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