Sandy asks…Neglecting reaction time, the distance required for a car to stop is directly proportional to the square of itNeglecting reaction time, the distance required for a car to stop is directly proportional to the square of its velocity. If a car can stop in 8.5 meters at 20 kilometers per hour, approximately how many meters are needed to stop at 50 kilometers an hour?
13.4
21.3
53.1
117.6Nancy answers:Since it is directly proportional we know:
(20km/hr)^2 * x =
