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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/s

B

3 m/s

C

4 m/s

D

6 m/s

Text Solution

Verified by Experts

The correct Answer is:
C

`t_(1) = 2sec " "t_(2) = 3sec`
`v = u + at`
`= 0 + 2 xx 2 = 4m//sec`
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