Question: y =2.0 m/'s m = 0.25 kg After v = ? m/s 15. A 6000 kg railroad car moving at 5 m/'s VE5 collides into

y =2.0 m/'s m = 0.25 kg After v = ? m/s 15. A 6000 kg railroad car moving at 5 m/'s VE5 collides into a stationary car with a mass of 4000 kg. If they couple together after the collision, what will be their combined velocity immediately after impact? VE ? m/s

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