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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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Knowledge Check

  • A car moving with a speed of 50 km/h, can be stopped by brakes after at least 6 m. If the same car is moving at a speed of 100 km/h, the minimum stopping distance is :

    A
    12 m
    B
    18 m
    C
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    A
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    B
    12 m
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    18 m
    D
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    B
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    C
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    D
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