federal statute requires that a car's bumper be designed to withstand a 2.50 mph (1.12m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the average force on a bumper that collapses 0.200m while bringing a 900 kg car to rest from an initial speed of 1.12 m/s.