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The displacement of a particle at time t...

The displacement of a particle at time t is given by ` s= 2t^(3) -5t^(2)+ 4t-3` . The time when the acceleration is 14ft/ `sec^(2)` is

A

` 1 sec`

B

` 2 sec`

C

` 3 sec`

D

` 4 sec`

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Verified by Experts

The correct Answer is:
B
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