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The relation between time t and distance...

The relation between time t and distance x is given by `t=ax^(2)+ bx`. Where a, b are constants. Then retardation is :

A

`2a v^(3)`

B

`2a bv^(3)`

C

`2 bv^(3)`

D

`2a b`.

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The correct Answer is:
A
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