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A car moving with constant acceleration ...

A car moving with constant acceleration covers the distance between two points 180 m apart in 6 sec.Its speed as it passes the second point is 45 m/s.What is its acceleration and its speed at the first point

A

`-5 m//s^(2),`15 m/s

B

`-15 m//s^(2),`5 m/s

C

`-5 m//s^(2)`,-15 m/s

D

`5 m//s^(2)`,15 m/s

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The correct Answer is:
D
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Knowledge Check

  • A car moving with constant acceleration crosses two points A and B with velocities 10 m/s and 20 m/s in its path. Find the velocity of the car midway between A and B. (in m/s).

    A
    `sqrt(500)`
    B
    `5sqrt(5)`
    C
    `5sqrt(10)`
    D
    `sqrt(300)m//s`

  • A car moving with constant acceleration crosses two points A and B with velocities 10 m/s and 20 m/s in its path. Find the velocity of the car midway between A and B. (in m/s).

    A
    `sqrt(500)`
    B
    `5sqrt(5)`
    C
    `5sqrt(10)`
    D
    `sqrt(300)m//s`

  • A car moving with constant acceleration crosses two points A and B with velocities 10 m/s and 20 m/s in its path. Find the velocity of the car midway between A and B. (in m/s).

    A
    `sqrt500`
    B
    `5sqrt5`
    C
    `5sqrt10`
    D
    `sqrt300` m/s

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