Question

Problem 3: Determine the lowest gear reduction ratio (fill in the blanks)

A rear-wheel-drive car weighs 3900 lb, has 15-inch radius wheels, a driveline efficiency of 95% and

an engine that develops 520 ft-lb of torque. Its wheelbase is 8.2 ft and the center of gravity is 18

inches above the road surface and 3.3 ft behind the front axle. What is the lowest gear reduction

ratio that would allow this car to achieve the highest possible acceleration from rest on good, dry

pavement? Pay close attention to the units and all answers must be rounded to two decimals.

Fmax=

lbs

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