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Physics, 10.07.2019 18:30 chastineondre7979
an empty 2,500 kg train car is headed northbound at a velocity of 5 m/s. ahead of the first car, an empty 1,500 kg car is headed northbound on the same track at 1 m/s. the faster train bumps into the slower one, and they combine into one train. what is the velocity of the two-car train? 1 m/s 3 m/s 3.5 m/s 5 m/s
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an empty 2,500 kg train car is headed northbound at a velocity of 5 m/s. ahead of the first...
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