SOLUTION: A man is walking at an average speed of 4 miles per hour along a railroad track. A train going the same way at a speed of 30 mph requires 5 seconds to pass the man. How long is t
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: A man is walking at an average speed of 4 miles per hour along a railroad track. A train going the same way at a speed of 30 mph requires 5 seconds to pass the man. How long is t
Log On
Question 270640: A man is walking at an average speed of 4 miles per hour along a railroad track. A train going the same way at a speed of 30 mph requires 5 seconds to pass the man. How long is the train? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! A man is walking at an average speed of 4 miles per hour along a railroad track.
A train going the same way at a speed of 30 mph requires 5 seconds to pass the man.
How long is the train?
;
Let x = length of the train
:
Convert both speeds to ft/sec
Man: = 5.867 ft/sec
:
Train: = 44 ft/sec
:
Find the length of the train
x = 5(44 - 5.867) = 190.67 ft
