60 miles per hour !
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You are traveling 1 mile in 1 minute. There are 60 minutes in an hour, so you are traveling 60 mph.
well, if you were going 1 mile in 60 sec. you would be going 1 mile per minute. or, in this case, you would be going 5/6 of a mile per minute. (MPM, or miles per minute.)
The speed is 20 mph. 1 mile/3 minutes = 1/3 mile per minute (x 60 minutes/hour) = 20 miles/hour
If you go a mile in 1 minute, it will take 157 minute which is 2 hours and 37 minutes.
4 minutes. The last car on the train is the best way to think about it. That car has to travel the length of the train(1 mile) and also the length of the tunnel( also 1 mile). The total distance would be 2 miles, obviously. So if the train were traveling at 60mph it takes 1 minute to go 1 mile, but since it is going 30mph, it would take two minutes to go 1 mile.