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Tripling the speed of a motor car multip...

Tripling the speed of a motor car multiplies the distance required for stopping it by

A

2

B

3

C

6

D

9

Text Solution

Verified by Experts

The correct Answer is:
D
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If the speed of a motor car is doubled , how much more distance will it cover before stopping under the same retarding force ?

7.If "50m" is the distance at which a car can be stopped when initially it was moving with speed "10ms^(-1)",then on making the speed of the car "50ms^(-1)",the distance at which the car can be stopped is (retardation is same in both cases)

Knowledge Check

  • Tripling the speed of the motor car multiplies the distance needed for stopping it by

    A
    3
    B
    6
    C
    9
    D
    Some other number

  • Tripling the speed of the motor car multiplies the distance needed for stopping it by

    A
    3
    B
    6
    C
    9
    D
    Some other number

  • A car moving with a velocity v is stopped within a distance x by applying a retarding force F. If the speed of the car is doubled, then the force required to stop the car with the same distance is

    A
    2F
    B
    3F
    C
    4F
    D
    `F//4`

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

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    A car moving with speed v on a straight road can be stopped with in distance d on applying brakes. If same car is moving with speed 3v and brakes provide half retardation, then car will stop after travelling distance

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