SOLUTION: a train traveling at 60 miles an hour takes 5 seconds to enter a tunnel and a further 40 seconds to pass completely through the tunnel. what is the length of the train and what is
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Question 376387: a train traveling at 60 miles an hour takes 5 seconds to enter a tunnel and a further 40 seconds to pass completely through the tunnel. what is the length of the train and what is the length of the tunnel? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! 60 mph = 88 ft/s
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let train length be x
so time to enter = x/88 sec
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x/88 = 5 feet length of train
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time to pass the tunnel completely =45 seconds
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distance = tunnel length + train length
distance = y +440
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time = (y+440)/88
45=(y+440)/88
88*45= y+440
y= 3960-440 length of tunnel
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m.ananth@hotmail.ca
