Question

While traveling in opposite direction,two trains of equal length crosses each other in 5 second.Of the speed of trains are 72 km/hr?

Answer 1

i think u want to ask the length of the two train
as bothtrains are moving inopposite directions so relative velocity would be 72+ 72 = 144km/ hr time taken is 5 second
velocity =relative displacement / time
144× 5/18 m/ sec = displacement/ 5
ans will be 200
200 is the sum of length of both the train
so lengthof each train is 100

Answer 2

hi friend your answer is here

directions so relative velocity would be 72+ 72 = 144km/ hr time taken is 5 second
velocity =relative displacement / time
144× 5/18 m/ sec = displacement/ 5
ans will be 200
200 is the sum of length of both the train
so lengthof each train is 100

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