2. A car of mass 2500kg and moving at 3 m/s, northeast collides with a 3800 kg
car moving northwest at 2.5 m/s. Find their velocity, assuming that the collision is
perfectly inelastic.
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Answer:
The momentum of the objects before the collision is conserved, but the total energy is not conserved. The final velocity of the combined objects depends on the masses and velocities of the two objects that collided. The units for the initial and final velocities are m/s, and the unit for mass is kg.
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