Mathematics
Train Crossing a Platform
Calculate time taken by a train to cross a platform or bridge.
Time = (Length of Train + Length of Platform) / Speed
Formula Explanation
The train must cover its own length plus the length of the platform.
Variables Explained
Both lengths must be in the same unit.
Solved Example
Train 150 m, platform 250 m, speed 90 km/h. Time?
Speed = 25 m/s; Distance = 400 m; Time = 16 s.