Question 3 (2,5 points): Work and Kinetic Energy
The driver of a 1.0 x10 kg car traveling on the interstate highway at 40.0m / s slams on his brakes to avoid hitting a second vehicle in front of him, which is at rest because of congestion ahead (see the figure below). After the brakes are applied, a constant kinetic frictional force of magnitude 8.0×10° N acts on the car. In the absence of the air resistance, find the distance that the car will travel before coming to rest using the work-kinetic energy theorem (assuming that the car stops before hitting the vehicle.