A train 100 meters long takes 6 seconds to pass a man walking at 5 km/h in the opposite direction. What is the speed of the train?
Q1. A train 100 meters long takes 6 seconds to pass a man walking at 5 km/h in the opposite direction. What is the speed of the train?
Answer: 58 km/h
Explanation: Relative speed = (100 / 6) m/s = (100 / 6) * (18 / 5) km/h = 60 km/h. Speed of train + 5 km/h = 60 km/h, so speed of train = 55 km/h.