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A point P moves in counter clockwise dir...

A point P moves in counter clockwise direction on a circular path as shown in the figure. The movement of 'P' is such that it sweeps out a length `s=t^(2)+5`, wheres is in metres and t is in seconds. The radius of the path is 20m. The acceleration of 'P' when `t=5sqrt((3)/(10))` seconds is nearly:

A

`2m//s^(2)`

B

`1.5m//s^(2)`

C

`2.5m//s^(2)`

D

`3m//s^(2)`

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The correct Answer is:
C
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