A train 268 m long is moving at a speed of 58 km/h. How much time will it take to cross a man coming from the opposite direction at a speed of 14 km/h?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 13.4 seconds.
Train speed = 58 km/h
Man speed = 14 km/h
Relative speed = 58 + 14 = 72 km/h
Convert to m/s: 72 × (1000 / 3600) = 20 m/s
Train length = 268 m
Time = 268 / 20 = 13.4 seconds