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A 2750 lb car has a frontal cross-sectional area A of 22.4 ft2, a drag coefficient...

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Physics

A 2750 lb car has a frontal cross-sectional area A of 22.4ft2, a drag coefficient Cd of 0.28, and adrive (or tractive) force of 280 lbs. Assume an air density of2.3x10-3 slug/ft3.

A.  Determine the acceleration of the carwhen it is driving at 31 mph on a level road.

B.  Determine the acceleration of the car when it isdriving at 31 mph on a level road into a 7 mph head wind.

C.  Determine the acceleration of the car when it isdriving at 31 mph up a 2.1 degree hill (no head or tail wind).

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