how much time does a 200meters long train take to cross a person standing in the station with 40kmph?
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train will cover its distance that is 200m; speed = 40kmph= 40×5/18=11.111m/s
time let t
from speed= distance/time
11.11=200/t
t= 18 second
GHS001:
why u took 5/18
to convert kilometre per houre into metre per second.
kilometre = 1000 metre , and 1 hour = 3600 second
so 1000/3600 = 5/18
length of the train is given in meter. So i converted the speed into the same unit ( m/s)
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