Posted by **Sarah** on Thursday, March 24, 2011 at 11:22am.

During a high-speed chase, a 2400-lb sports car traveling

at a speed of 100 mi/h just loses contact with the road as it

reaches the crest A of a hill. a) Determine the radius of

curvature r of the vertical profile of the road at A. b)

Using the value of r found in a part a), determine the

force exerted on a 160-lb driver by the seat of his 3100-lb

car as the car, traveling at a constant speed of 50 mi/h,

passes through A.

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