1. The problem statement, all variables and given/known data On a wet racetrack, the maximum safe speed, to avoid sliding on a level circular curve with a radius of curvature of 53 m, is 77 km/hr. What is the coefficient of friction between the car's tires and the track surface? 2. Relevant equations (gravity)*(coefficient) = (v^2)/r V= 21.39 m/s (after changing 77 km/hr into m/s) Radius= 55 meters 3. The attempt at a solution I kept getting the same answer .8488, but it keeps telling me i'm wrong? Help please!!!