posted by Jake .
The braking distance of a car is 29m. If the speed of the car is increased by 45%, what is the car's new braking distance? Assume the acceleration of the car is constant and independent of its initial speed
The time required to stop is proportional to the initial kinetic energy, and therefore proportional to V^2.
The new braking distance will be higher by a factor (1.45)^2,.