SOLUTION: a550 yard long train travelling at 40 mph, enters a three mile long tunnel. How long will elapse between the moment the front of the train enters the tunnel and th moment the end o
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Question 975495: a550 yard long train travelling at 40 mph, enters a three mile long tunnel. How long will elapse between the moment the front of the train enters the tunnel and th moment the end of the train clears the tunnel
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
a 550 yard long train travelling at 40 mph, enters a three mile long tunnel.
How long will elapse between the moment the front of the train enters the tunnel and the moment the end of the train clears the tunnel?
:
Find the time it takes for the front of the train to go through the tunnel plus the length of the train.
:
Change 550 yds to miles: 550/1760 = .3125 mi
Total distance: 3.3125 mi
;
Time = dist/speed\
t =
t = .0828125 hrs
change this to minutes
.0828125 * 60 = 4.97 ~ 5 min to clear the tunnel
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