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Position of particle moving along x-axis...

Position of particle moving along x-axis is given as `x=2+5t+7t^(2)` then calculate :

A

Velocity `(i.e(dx)/(dt))` of particle

B

Initial velocity`(i.e(dx)/(dt)" att"=0)`

C

Velocity at `t=2sec`

D

Accleration`(i.e(d^(2)x)/(dt^(2)))` of particle

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A, B, C, D
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