Then length of the platform is 240m.
Average Speed:
Average speed of a moving object based on the distance traveled over a certain time traveled.
The formula for the average speed is,
Average Speed = (Total distance traveled)/(Total time taken)
Given:
A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds.
And the speed of the train = 54 km/hr.
Now, we have to calculate the length of the platform,
First we have to convert the speed into m/s
So, Speed of the train = 54 × 5 / 18 = 15 m/s.
Now, Length of the train is
=> 20 x 15 = 300 m
So, Length of platform x train = 36 × 15 = 540 m.
So, the length of the platform is,
=> 540 – 300 = 240 m.
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