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The equation of a particle moving along ...

The equation of a particle moving along a straight line is `s=2t^3 – 9t^2 + 12t`, where the units of s and t are cm and s. the acceleration of the particle will be zero after

A

`3/2` s

B

`2/3 s`

C

`1/2 s`

D

1s

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The correct Answer is:
A
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