You are designing the brake system for a Mini Cooper S. Determine an appropriate proportioning constant and the associated brake pressure that is required for the Mini using the following design criteria: - h/L = 0.23; W (curb weight) = 2678 lbf, 61/39 front/rear static curb weight distribution, L = 97.1 in. - Unloaded condition a 200 lbf driver, CG of driver is 45.7 in. ahead of the rear axle - Loaded condition 1 front seat passenger (200 lbf), CG is 45.7 in. ahead of the rear axle; 2 rear seat passengers (each 200 lbf), CG of each rear passenger is 11.4 in. ahead of the rear axle - when up = 0.2, required deceleration is 4.5 ft/s2 - when up = 1.0, required deceleration is 22 ft/s2 If Fx_r = kb*Fx_f where Fx_r is the rear brake force, kb is the brake proportion constant, and Fx_f is the front brake force, determine what value of kb should be used under all driving conditions. Justify your decision.