2.8 A rear-wheel-drive car weighs 2600 lb and has an 84-inch wheelbase, a center of gravity 20 inches above the roadway surface and 30 inches behind the front axle, a

drivetrain efficiency of 85%, 14-inch-radius wheels, and an overall gear reduction of 7 to 1. The car's torque/engine speed curve is given by the equation Me=6ne - 0.045n^2c. If the car is on a paved, level roadway surface with a coefficient of adhesion of o.75,determine its maximum acceleration from rest.