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A point P moves in a counter-clockwise d...

A point P moves in a 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^(3) +5` where s is in the metre and t is in seconds. The radius of the path is 27 m. The acceleration of P when t= 3 s is _________ `m//s^(2)`. (Take `sqrt(13) = 3.6`)

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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