Question

Train 100 m long is moving with a velocity of 60 km/h. find the time it takes to cross a bridge 1 km long.

Answer 1

Answer:

we should calculate the total time taken by the train to cross the 1 km bridge .

⇒ S = 1 km + 100 m ( bridge + train length )

⇒ S = 1000 + 100 = 1100 m

velocity = 60 km / hr = 60 x 1000 / 3600 m/s

velocity = 16 . 6 m / s

according to the general formula of velocity , we know ,

velocity = distance / time taken

time taken = distance / velocity

time = 1100 / 16.6

time = 66.2 seconds.

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