A train 120 metres long passes an electric pole in 8 seconds. What is the speed of the train in km/h?
Q1. A train 120 metres long passes an electric pole in 8 seconds. What is the speed of the train in km/h?
Answer: 54 km/h
Explanation: The train covers its own length of 120 m in 8 s, giving 15 m/s. Converting to km/h gives 15 multiplied by 18/5, which equals 54 km/h.