1. The problem statement, all variables and given/known data A car of mass 1500 kg rolls down a hill for a distance of 150 m as shown. If the road makes an angle of 15º with the horizontal, how much work is done on the car by the force of gravity? 2. Relevant equations ep=mgh, w=fd, f=ma 3. The attempt at a solution i really have no idea. am i trying to find acceleration(gravity)?