two trains move on parallel tracks in opposite directions away from each other. one moves at the rate of 50m/s, while the other moves at 70m/s. what is the magnitude of the velocity of each train relative to the other?
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Expert's answer
2012-11-22T08:21:51-0500
Obviously, we just have to add their velocities Magnitude of relative velocity is 50 m/s+70 m/s = 120 m/s
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