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A circular disc is rotating about its ow...

A circular disc is rotating about its own axis at a uniform angular velocity `.omega.`. The disc is subjected to uniform angular retardation by which its angular velocity is decreased to `(omega)/(2)` during 120 rotations. The number of rotations further made by it before coming to rest is

A

120

B

60

C

40

D

20

Text Solution

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The correct Answer is:
C
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Knowledge Check

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