Unit 1 Project "Full Stop Ahead"
1.Why do you think the estimates of speed do not double when the skid marks are double in length? The friction between the road and tires increases over time making the car lose speed exponentially the longer it is motion.
2. Based on the results, what conclusion can you make about safe distances between cars?
Stay more than 70 feet behind a car if you are traveling at 40 mph and 130 ft if you are traveling 57mph. Increase those distances even further if you are driving in hazardous road conditions
47 Mph the speed at which you're going to have to be traveling to have a stopping distance of 150. To ensure a safe stopping distance you should be traveling between 40-45 Mph