a train is 360 m long is running at a speed of 45 km per hour. find the time taken by it to cross a l140m long tunnel.
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15
Hey.
Here is the answer.
As speed of the train is 45 km/h .
The total distance needed to be covered to cross the tunnel = length of tunnel + length of the train
= 360+140 m = 500 m = 0.5 km
So, as time = d/ s
so, time = 0.5/45 = 1/90 hr = 60/90 minutes = 2/3 minutes = 0.667 minutes = 2×60/3 second = 40 second.
Thanks.
Here is the answer.
As speed of the train is 45 km/h .
The total distance needed to be covered to cross the tunnel = length of tunnel + length of the train
= 360+140 m = 500 m = 0.5 km
So, as time = d/ s
so, time = 0.5/45 = 1/90 hr = 60/90 minutes = 2/3 minutes = 0.667 minutes = 2×60/3 second = 40 second.
Thanks.
Answered by
1
The answer would be 11.1║ if the train has to completely pass through
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