Physics, 19.07.2019 23:10 joshuajoseph249

A20,000-kg railroad car travels down the track at 30 m/s and hits a second stationary railroad car of 10,000 kg. the cars become coupled and continue traveling. calculate the final velocity of the cars.

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A20,000-kg railroad car travels down the track at 30 m/s and hits a second stationary railroad car o...