A train 180 metres long passes a signal pole at 54 km/h. How many seconds does the whole train take to clear the pole?
Q1. A train 180 metres long passes a signal pole at 54 km/h. How many seconds does the whole train take to clear the pole?
Answer: 12 seconds
Explanation: Speed 54 km/h equals 15 m/s. Time to cover the train length is 180 divided by 15, which is 12 seconds.