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A wheel of radius 20 cm and moment of in...

A wheel of radius 20 cm and moment of inertia `1` kgm^2 can rotate about its centre.A string is wrapped over its rim and is pulled by a force 'F' tangential to the rim of wheel.If angular acceleration produced is `2` rad/s^2 then the value of force 'F' is

A

A. `10` N

B

B., `20` N

C

C. `5` N

D

D. `15` N

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