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 :

Stopping distance is proportional to square of the vehicle speed s=u22a.Hence for different vehicle speed and same deceleration, stopping distance s'=s·u'u2=6×100502 m=24 m.