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a train running at the speed of 60km/he crosses a pole in 9 seconds. what is the length of the train


achchu139 24th Dec, 2021
Answer (1)
Priyanka 24th Dec, 2021

Hello,

Given data:
Speed (v) of train = 60 km/hr.
And it takes 9 seconds to cross a pole.
Therefore, time (t) = 9 seconds.
Now as we know 1 km = 1000 meters.
And 1 hr. = 3600 sec.
So 1(km/hr.) = (1000/3600) = (5/18) meter/seconds
So 60 km/hr. = 60×518=50360×518=503 m/sec.
So the speed (v) of the train = 503503 m/sec.
Now as we know speed (v), distance (d) and time (t) is related as
d = v×t Units.
Now let the length of the train be l m.
⇒l=v×t⇒l=v×t Meters.
Now substitute the values in above equation we have,
⇒l=503×9=150⇒l=503×9=150 Meters.
So this is the required answer.

I hope this would help you.

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