Air rushing over the wings of high-performance race cars generates unwanted horizontal air resistance but also causes a vertical downforce, which helps cars hug the track more securely. The coefficient of static friction between the track and the tires of a 695kg car is 0.823 . What is the magnitude of the maximum acceleration at which the car can speed up without its tires slipping when a 4450 . N downforce and an 1080-N horizontal air resistance force act on it? Number Units