Rather than run in the school marathon, then decided to run with his brother and his new car. they drove to north from pinehills to silverlight covering a distance of 240 km in four hours. on the way, i stop for a traffic light. when the light change to green, the car started from 0 m/s (stop) in which the speed of 100 m/s in ten seconds at what average speed did dan drive from pine hills to silver lake?