Question

A train 110m long travels with 72 km /hr, how much time the train will to pass a bridge of length 90 m?​

Answer 1

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Answer 2

Answer :

A/Q , Total distance = 110m + 90 m= 200m

or, speed in m/s = 72 × 5/18 = 20m/s

thus, Time taken to pass a bridge

= 200/20 = 10 second