Question

A train travelling at a uniform speed clears a platform 200 m long in 10 seconds and passes a telegraph post in 5 seconds. the speed of the train is

Answer 1

The train is said to be travelling at a uniform speed - meaning you can pick any section of the journey to calculate its speed.

Speed = distance / time

Speed = 200m / 10 secs
 
            =  20 meters per second. 

20m/s to km/hr =  20 × 1000/3600 = 72km/hr

The train is travelling at a speed of 72km/hr  or 20m/s


Note: the detail given about the telegraph post is not necessary for the calculation of the speed of this train.

Answer 2

Answer:

72kmph

Step-by-step explanation:

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