Question 52

A train 400 m long passes a pole in 20 seconds. What is the speed of the train?

Name: A train 400 m long passes a pole in 20 seconds. What is the speed of the train?
Uploaded: 2021-03-25T09:49:13.163645+05:30
Duration: 48 s
Description: A train 400 m long passes a pole in 20 seconds. What is the speed of the train?

Solution

Length of the train = 400 m
Time taken by the train to cross a pole is the time taken by the train to cross its length
Speed of the train = $$\dfrac{400}{20} = 20 m/sec = 20 \times \dfrac{18}{5} = 72 km/hr$$