Answer Happy

1) A passenger car has a hydraulic brake system with a linear force distribution. The braking system of this car is designed such that, when the vehicle is unloaded, front and rear tires lock-up simultaneously at a deceleration of 0.85g. The location of center of gravity is given in the table below for the unloaded and loaded cases. Neglecting the road resistances; When this car is traveling on a wet surface where the peak coefficient of road adhesion between the tires and ground is 0.5, calculate the maximum deceleration achievable without tire lock-up for the unloaded and loaded cases. Which axle tires lock-up first? (L: wheelbase, li and hi: distance of CG from the front axle and ground respectively) 11/L h/L 0.45 0.25 Unloaded (Driver only) Loaded 0.50 0.25