Q .     A uniform circular disc of radius `50\ cm` at rest is free to turn about an axis which is perpendicular to its plane and passes through its centre. It is subjected to a torque which produces a constant angular acceleration of `2.0\ (rad)s^{-2}` Its net acceleration in `ms^{-2}` at the end of `2.0 \ s` is approximately:


AIPMT 2016
A

`8.0`

B

`7.0`

C

`6.0`

D

`3.0`

HINT

`\omega=\omega_o +\alpha t`

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