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A car is accelerated on a lavelled road ...

A car is accelerated on a lavelled road and attains a speed of 4 times its initial speed. In this process, the kinetic energy of the car :

A

does not change

B

becomes 4 times that of initial kinetic energy

C

becomes 8 times that of initial kinetic energy

D

becomes 16 times that of initial kinetic energy

Text Solution

Verified by Experts

The correct Answer is:
D
NA
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Knowledge Check

  • A car is accelerated on a lavelled road and attains a velocity 4 times of its initial velocity. In this process, the potential energy of the car

    A
    does not change
    B
    becomes twice to that of initial
    C
    becomes 4 times that of initial
    D
    becomes 16 times that of initial

  • A car is accelerated on a levelled road and attains a velocity 4 times of its initial velocity. In this process the potential energy of the car :

    A
    does not change
    B
    becomes twice that of initial
    C
    becomes 4 times that of initial
    D
    becomes 16 times that of initial

  • If the speed of a motor car becomes six times, then the kinetic energy becomes

    A
    6 times
    B
    36 times
    C
    12 times
    D
    24 times

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    A racing car accelerates on a straight road from rest to a speed of 50 mis in 25 s. Assuming uniform acceleration of the car throughout, the distance covered in this time will be

    An older-model car accelerates from 0 to speed v in a time interval of Delta t . A newer , more powerful sports car accelerates from 0 to 2v in the same time period. Assuming the energy coming from the engine appears only as kinetic energy of the cars. Choose correcct statement.

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