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A car moving with a speed of 40 km/h can...

A car moving with a speed of 40 km/h can be stopped by applying brakes after at least 2 m. If the same car is moving with 80 km/h, what is the least stopping distance ?

A

8 m

B

2 m

C

4 m

D

6 m

Text Solution

Verified by Experts

The correct Answer is:
a
Stopping distance `prop` `(velocity)^(2)`
`(s_(2))/(2)=((80)/(40))^(2)=4`
`:. S_2 =8`
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