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 :

Options

A. 12 m
B. 18 m
C. 24 m
D. 6 m

Answer

c

Explanation

If speed of a body become n time then distance require to stop the body by same force become `n^(2)` times sinc velocity is doubled\distance become 4 times.
`i.e. x_(2)=4x_(1)=4xx6=24 m`