A car traveling at 30 mph skids to a stop in 60 meters.If a car travels at 60 mph with the same skid conditions,then what is distance the car skids to come to a stop?
A) 340 m
B) 310 m
C) 260 m
D) 240 m
E) 190 m

Question

Quizplus · Accepted Answer

The stopping distance is proportional to the square of the speed. If the speed doubles from 30 mph to 60 mph, the stopping distance will be four times greater. Therefore, 60 meters * 4 = 240 meters.

A Car Traveling at 30 Mph Skids to a Stop