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A train moving at 49 mph meets and is passed by a train moving at 63 mph. A passenger in the first train...

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A train moving at 49 mph meets and is passed by a train moving at 63 mph. A passenger in the first train noted that the second train took 4.5 seconds to pass him. How long is the second train?

posted Sep 18, 2015 by Balwinder

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1 Answer

+1 vote

0.14 miles.
Assuming the trains move in opposite directions (hence meet) the combined speed is 112 mph = 0.0311 miles per seconds.
In 4.5 seconds the trains moved 4.5 * 0.0311 = 0.14 miles.

answer Sep 19, 2015 by Jcm



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