SOLUTION: A train takes two seconds to enter a tunnel which is two kilometre long. If the train is travelling at 180km per hour, how long will it take to pass completely through the tunnel?

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Question 953337: A train takes two seconds to enter a tunnel which is two kilometre long. If the train is travelling at 180km per hour, how long will it take to pass completely through the tunnel?
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
A train takes two seconds to enter a tunnel which is two kilometre long. If the train is travelling at 180km per hour, how long will it take to pass completely through the tunnel?
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travel time=distance/speed
180%28km%2Fhr%29%28hr%2F3600+sec%29=180+km%2F3600+sec=.05km/sec
2km/(.05 km/sec)=40 sec
how long will it take to pass completely through the tunnel=40+2=42 sec