A car at the Indianapolis 500 accelerates uniformly from the pit area, going from rest to 320 km/h in a semicircular are with a radius of 22m. Determine the tangential and radial acceleration of the car when it is halfway through the turn, assuming constant tangential acceleration. If the curve were flat, what would the coefficient of static friction have to be between the tires and the road to provide this acceleration with no slipping or skidding?