SOLUTION: Suppose you are walking along the side of train tracks at 2 mph. A train is traveling 20 mph in the same direction requires 1 minute to pass you. How long is the train?

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Question 95927This question is from textbook Intermediate Algebra
: Suppose you are walking along the side of train tracks at 2 mph. A train is traveling 20 mph in the same direction requires 1 minute to pass you. How long is the train? This question is from textbook Intermediate Algebra

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Suppose you are walking along the side of train tracks at 2 mph. A train is
traveling 20 mph in the same direction requires 1 minute to pass you. How long
is the train?
:
Distance you travel, going 2 mph, in 1 minute, (in feet)
%28%282%2A5280%29%29%2F60 = 176 ft
:
Distance train travels, in 1 min, going 10 time as fast = 1760 ft
:
Train length: 1760 - 176 = 1584 ft is the train's length
:
Check solution using relative speed between you and the train:
That would be 18 mph
%28%2818%2A5280%29%29%2F60 = 1584 ft also