Find the decrease in kinetic energy as result of collision

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An empty freight car of mass 8000 kg rolls at 5 m/sec along a level track and collides with a loaded car of mass 16,000 kg, standing at rest with its brakes released. If the cars couple together, find their speed after the collision. Also, find the decrease in kinetic energy as a result of the collision. Is the collision elastic or inelastic?

Reference no: EM13549360

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