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A car acceleration from rest at a consta...

A car acceleration from rest at a constant rate `2m//s^(2)` for some time. Then, it retards at a constant rate of `4 m//s^(2)` and comes to rest. If it remains motion for 3 second, then the maximum speed attained by the car is:-

A

2 m/sec

B

3 m/sec

C

4 m/sec

D

6 m/sec

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The correct Answer is:
C
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