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By applying the brakes without causing s...

By applying the brakes without causing skid, the driver of a car is able to stop his car with in a distance of `5 m`, if it is going at `36 kmph`. If the car were going at `72 kmph`. Using the same brakes, he can stop the car over a distance of

A

10 m

B

2.5 m

C

20 m

D

40 m

Text Solution

Verified by Experts

The correct Answer is:
C
`W = Delta KE , (Delta KE_(1))/(Delta KE_(2)) = (W_(1))/(W_(2)) = (FS_(1))/(FS_(2))`.
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