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

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
...
let train length be x
so time to enter = x/88 sec
...
x/88 = 5
feet length of train
...
time to pass the tunnel completely =45 seconds
...
distance = tunnel length + train length
distance = y +440
..
time = (y+440)/88
45=(y+440)/88
88*45= y+440
y= 3960-440
length of tunnel
...
m.ananth@hotmail.ca
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