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A motor car moving with uniform accelera...

A motor car moving with uniform acceleration covers two successive kilometre in 30 second and 20 second respectively. Then the acceleration of motor car is:

A

`3 ms^(-2)`

B

`3/2 ms^(-2)`

C

`2/3 ms^(-2)`

D

`1/3 ms^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • A body starts from rest with uniform acceleration in a st. line, Then distance travelled by body in 3rd and 4th second are in the ratio :

    A
    `1:1`
    B
    `1:3`
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    `3:4`
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    `s^(-3)`
    B
    `s^(3//2)`
    C
    `s^(-2//3)`
    D
    `s^(2)`

  • A body moving along a straight line uniform acceleration 'a' covers a distance S_1 in the first t seconds and a distance S_2 in the next t second, a is then given by

    A
    `(S_1 + S_2)/t^2`
    B
    `(3S_1- S_2)/(t^2)`
    C
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