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Velocity of a particle is given as v = (...

Velocity of a particle is given as `v = (2t^(2) - 3)m//s`. The acceleration of particle at t = 3s will be :

A

`18 ms^(-2)`

B

`12 ms^(-2)`

C

`15 ms^(-2)`

D

zero

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The correct Answer is:
B
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