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A 31,000 lb truck A and a 3970 lb sports car B collide at an intersection (90 de

ID: 2092938 • Letter: A

Question

A 31,000 lb truck A and a 3970 lb sports car B collide at an intersection (90 degrees to one another). Right before the collision the truck and the sports car are traveling at vA-= 60 mph and vB-= 50 mph. Assume that the entire intersection forms a horizontal surface. Letting the line of impact be parallel to the ground and to the preimpact velocity of the truck, determine the postimpact velocities of A and B if the contact between A and B is frictionless and the COR=0.1. Furthermore, assuming that the truck and the car slide after impact and that the coefficient of kinetic friction is?=0.7, determine the position at which A and B come to a stop relative to the position they occupied at the instant of impact.

Explanation / Answer


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