Physics, 08.03.2021 08:00 renaa1221

A 120,000 kg train car moving at 4.5 m/s (about 10 miles/hr) collides with another train car of mass 130,000 kg. What would be the velocity of the two if they couple together and the second car was moving at 2.0 m/s in the opposite direction before the collision?

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A 120,000 kg train car moving at 4.5 m/s (about 10 miles/hr) collides with another train car of mass...

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