2007-10-17 06:45:24 · 6 answers · asked by 000000001 1 in Science & Mathematics ➔ Mathematics
The train must travel 2 miles as soon as it enters the tunnel to pass through completely. 60mph = 1 mile/minute, and so 2 miles = 2 minutes.
2007-10-17 07:03:21 · answer #1 · answered by John V 6 · 0⤊ 0⤋
It has to travel 2 miles so it takes 1/30 of an hour
2007-10-17 07:04:42 · answer #2 · answered by santmann2002 7 · 0⤊ 0⤋
rear of train is 1 mile from entrance of tunnel as train enters tunnel.
rear of train has to travel 2 miles to clear tunnel.
t = 2 / 60 h
t = 2 min
2007-10-18 07:38:16 · answer #3 · answered by Como 7 · 0⤊ 0⤋
Just two minutes...
The train is going a mile a minute (60 miles per hour / 60 minutes per hour = 60 / 60 miles/minutes)
The front of the train enters the tunnel. One minute later, the front end exits the tunnel. Now the mile length of the train must exit, taking another minute.
So it is just two minutes.
2007-10-17 07:06:40 · answer #4 · answered by Don E Knows 6 · 0⤊ 0⤋
2 hours and 1 second.
2007-10-17 06:58:38 · answer #5 · answered by Mister2-15-2 7 · 1⤊ 1⤋
john v is right. 2 minutes
2007-10-17 07:05:36 · answer #6 · answered by LL 3 · 0⤊ 0⤋