An pickup truck with mass 1.70  103 kg is traveling eastbound at +15.4 m/s, while a compact car with mass 8.74  102 kg is traveling westbound at -15.4 m/s. (See figure.) The vehicles collide head-on, becoming entangled. (a) Find the speed of the entangled vehicles after the collision.  (b) Find the change in the velocity of each vehicle. Δvtruck =  m/s Δvcar =  m/s (c) Find the change in the kinetic energy of the system consisting of both vehicles. J

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