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A car accelerates from rest at a constan...

A car accelerates from rest at a constant rate of `2 m//s^(2)` and comes to rest. If it remains in motion for 3 seconds, 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

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The correct Answer is:
A
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Knowledge Check

  • 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
    2m/s
    B
    3m/s
    C
    4m/s
    D
    6m/s

  • A car accelerates from rest at a constant rate of 2ms^(-2) for some time. Then, it retards at a constant rete of 4ms^(-2) and comes and rest. If the total time for which it remains in motion is 3 s, Then the total distance travelled is

    A
    2 m
    B
    3 m
    C
    4 m
    D
    6 m

  • A car accelerates from rest at a constant rate of 2 m s^(-2) for some time. The it retatds at a constant rate of 4 m s^(-2) and comes to rest. It remains in motion for 6 s .

    A
    Its maximum speed is `8 m s^(-1)`
    B
    Its maximum speed is `6 m s^(-1)`
    C
    It travelled a total distance of `24 m`
    D
    It travelled a total distance of `18 m`

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