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A point on a body performing pure rotati...

A point on a body performing pure rotation is `10 cm` from the axis of rotation of body. Angular position of the point from reference line is given by `theta=0.5 e^(2t) `, where `theta` is in Radian and t in second. The acceleration of the point at `t=0` is

A

`sqrt`5/10 `m/s^2`

B

`root`5 `m/s^2`

C

1/10 `m/s^2`

D

1/20 `m/s^2`

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