a train travelling at a speed of 54 km per hour crosses a lamppost in 20 seconds what is the length of the train
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we know distance=speed *time
we need to convert 54km/hr into m/s
then 54km/h=54*(5/18)
15m/s
then length of train is 15*20
300m
hope this helps
we need to convert 54km/hr into m/s
then 54km/h=54*(5/18)
15m/s
then length of train is 15*20
300m
hope this helps
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