A train 150 m long passes a pole in 15 seconds. Its speed in km/h is:
Q1. A train 150 m long passes a pole in 15 seconds. Its speed in km/h is:
Answer: 36
Explanation: Speed = 150 m / 15 s = 10 m/s. Convert: 10 × (18/5) = 36 km/h. Remember m/s to km/h: multiply by 18/5.