1. The problem statement, all variables and given/known data A circular automobile racetrack is banked at an angle X, to the horizontal, such that no friction between the road and tires are required when a car travels at 30.0 m/s. The radius of the track is 400m. What is the angle? The problem i have is setting up the problem. I have drawn a force diagram for the car moving on the incline, but i am very confused relating it to the slope. The only thing i can think of is to take the components of the radius of the track, but in all honesty i am having issues doing this. Tips?