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A train moving with a speed of 36 km/hr takes 14s to cross a bridge of length 100m. Find length of train.?
2 Answers
- 6 years ago
Speed of train = 36kmph or 10mps
time for crossing the bridge = 14s
the length of bridge = 100m
Let the length of the train be x.
So the total distance to be travelled = (100+x)m
Now, speed = distance/ time
10 = (100+x)/14
x = 40m
Length of the train is 40m
- 6 years ago
It takes the train 14 seconds to travel a distance of 100 + x meters, where x is the length of the train
36 km/hr =>
36000 m/hr =>
36000 m/(3600 s) =>
10 m/s
14 s * 10 m/s = 140 meters
140 = 100 + x
40 = x
The train is 40 meters long
