An 845 kilogram race car can drive around an unbanked turn at a maximum speed of 61m/s without slipping. The turn has a radius of curvature of145 meter. Air flowing over the car's wing exerts a downward-pointing force (called the down force) of10800 Newton on the car.
(a) Find the coefficient of static friction between track and car tires?
(b) Find what would be the maximum speed if no down force acted on the car?
m/s