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P6.2-3) A RWD 2011 Corvette Coupe's technical specifications are listed below Assuming that the air drag is constant, applied at the center of mass, and equal to 100 lb and the rolling resistance coefficient is f 0014, what is the cars maximum acceleration on level ground and driving uphill on a road with a 10% grade? Estimate the friction characteristics as that between rubber and dry asphalt and note that the total rolling resistance is equal to R. fw Given Curb weight:W- 3175 lb Wheel base: 1-105.7 in (Distance between the axles) . CG height: h 198 in . Rear wheel drive Weight distribution: 5149rr(%) Find: Solution Free-body diagram Draw a free-body diagram of the car. Equilibrium Use the weight distribution to determine the location of the C.G. Indicate these measurements on the free-body diagram. Hill angle What is the angle of the incline in degrees? Tractive Force Use Newton's second law to derive the normal force (in variable form) on the rear Write down the variable equation for the wheels for the uphill incline case maximum tractive force before the car's rear wheels slip. Equation of Motion Use Euler's second law to derive the normal force (in variable form) on the rear wheels for the uphill incline case. Acceleration Calculate the maximum acceleration of the car. a (incline) - a (flat)-

Answer 1

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