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A disc of radius 10 cm can rotate about ...

A disc of radius 10 cm can rotate about an axis passing through its centre and perpendicular to its plane. A force of 10 N is applied along the tangent in the plane of the disc. If the moment of inertia of the disc about its centre is 5 kg m2, then the increase in the angular velocity of the disc in 10 s will be

A

`2 rad//s`

B

`4 rad//s`

C

`1 rad//s`

D

`50 rad//s`

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