Question

The stopping distance of a car is directly proportional to the square of the speed of the car. If a car traveling 50 miles per hour has a stopping distance of 170 feet, find the stopping distance of a car that is traveling 70 miles per hour

Answer 1

70 / 50 = 1.4
1.4 * 1.4 = 1.96
So, the stopping distance increases by a factor of 1.96
170 feet * 1.96 = 333.20 feet