mobile has a mass of 2100 kg and a velocity of +17 m/s. It makes a rear end collision with a stationary car whose mass is 1900 kg. The cars lock bumpers and skid off together with the wheels locked. Is the collision elastic or inelastic? Is momentum conserved during the collision? Calculate the velocity of the two cars just after the collision? Calculate the Impulse (magnitude and direction) that acts on the skidding cars from just after the collision until they come to a halt. If the coefficient of kinetic friction between the wheels of the cars and the pavement is μk = 0.68, use

Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter9: Dynamics Of A System Of Particles
Section: Chapter Questions
Problem 9.30P
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An automobile has a mass of 2100 kg and a velocity of +17 m/s. It makes a rear end collision with a stationary car whose mass is 1900 kg. The cars lock bumpers and skid off together with the wheels locked. Is the collision elastic or inelastic? Is momentum conserved during the collision? Calculate the velocity of the two cars just after the collision? Calculate the Impulse (magnitude and direction) that acts on the skidding cars from just after the collision until they come to a halt. If the coefficient of kinetic friction between the wheels of the cars and the pavement is μk = 0.68, use conservation of energy to determine how far the cars skid before coming to rest.

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