A car (mass = 1160 kg) is traveling at 29.0 m/s when it collides head-on with a

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Question:

A car (mass = 1160 kg) is traveling at 29.0 m/s when it collides head-on with a sport utility vehicle (mass = 2460 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt.
(a) At what speed was the sport utility vehicle traveling?
(b) What is the kinetic energy of the system before the collision?
(c) What is the kinetic energy of the system after the collision?