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 ( of the vertical profile of the road at A.

(b) Using the value of ( found in 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.

Transcribed Image Text:

A