2.Two vehicles are traveling in opposite directions and are involved in a head on collision. Vehicle 1 has a mass of 1500kg and is headed due north at a speed of 25 m/s. Vehicle 2 has a mass of 4500kg and is headed due south at a speed of 15m/s. The two vehicles collide and the entire wreck sticks together and moves off with some velocity vs a. What is the total initial momentum? b. What is the total kinetic energy before the collision? c. What kind of collision is this? d. Is momentum conserved?

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