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A disc of mass 1 kg and radius 0.1 m is ...

A disc of mass 1 kg and radius 0.1 m is rotating with angular velocity 20 rad/s. What is angular velocity (in rad/s) if a mass of 0.5 kg is put on the circumference of the disc ?

A

10

B

20

C

40

D

30

Text Solution

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The correct Answer is:
A
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