Physics Final Exam Review
Energy: Work, Power, and Thermodynamics
1. A race car driver slams on his brakes to avoid hitting a car that cuts him off on the track. The mass
of his car is 1,500 kg He is able to slow his car from 45.9 m/s to 28.6 ms. What is the magnitude of
the work done by the car's brakes to slow the car down?