Jenny asks…Stopping distance - physics?The minimum stopping distance for a car traveling at a speed of 30m/s is 60m, including the distance traveled during the driver's reaction time of 0.46 s.
What is the minimum stopping distance for the same car traveling at a speed of 42 m/s?Nancy answers:The car travels a distance of 0.46 s x 30 m/s = 13.8 m before the brakes are applied
then the brakes cause an acceleration that slows the car to rest in
60m-13.8m = 46.2m
we find the acceleration
