SOLUTION: 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 s
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Question 763606: 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?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
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?
:
The effective speed between the trains: 49 + 63 = 112 mph
Assume the passenger is stationary and the 2nd train is passing him
at 112 mph
:
Find the speed in ft/sec, mult by 4.5 sec
* 4.5 = 739.5 ft is the length of the train
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