Mathematics
Train Crossing a Pole
Calculate time taken by a train to cross a pole or a person.
Time = Length of Train / Speed of Train
Formula Explanation
The train has to cover a distance equal to its own length.
Variables Explained
Length = length of train; Speed = speed of train.
Solved Example
A 200 m train running at 72 km/h crosses a pole. Time taken?
Speed = 72 × 5/18 = 20 m/s; Time = 200/20 = 10 s.