12.25

Determine the maximum theoretical speed that a 1225 kg automobile starting from rest can reach after

traveling 400 m if air resistance is considered. Assume that the coefficient of static friction between the

tires and the pavement is 0.70, that the automobile has front-wheel drive, that the front wheels support 62

percent of the automobile's weight, and that the aerodynamic drag D has a magnitude D = 0.5751², where

D and vare expressed in newtons and m/s, respectively.