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A car accelerates from rest at a constan...

A car accelerates from rest at a constant rate for some time after which it decelerates at a constant rate `beta` to come to rest. If the total time elapsed is t, the maximum velocity acquired by the car is given by :

A

`abt/(a+b)`

B

`a^(2)t/a+b`

C

`at/(a+b)`

D

`b^(2)t/a+b

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