Question

A train 350 metres long crosses an electric pole in 28 sec .find the speed of the train in km/hr

Answer 1

Time = Distance / speed

Speed = Distance / Time

Distance = 350m

Time = 28 seconds

Speed = 350/28 = 12.5 m/s

We need this speed in km/h

We convert it as follows :

12.5 × 18/5 = 45 km/h