1. The problem statement, all variables and given/known data Will a road banked at 40 degrees allow cars (u=0.6) to safely make a turn (radius=100m) while traveling at 30 m/s (or 67 mi/hr)? 2. Relevant equations f = uN possibly others 3. The attempt at a solution I'm really not sure how to get started. This is the only problem I don't know how to do. I would really appreciate any help. Thank you.