1.

A train is hundred metre in length and running at a speed of 72 km/h. What is the time taken by the train to cross a bridge of the length 525 m.Give answer in hours​

Answer»

Step-by-step explanation:

look the bridge is 525 METERS long but if a TRAIN wants to cross It then will be 625 meters long because for crossing the bridge the LAST point of the train should cover 100 meter DISTANCE more.

For speen of we convert the speed in m/s then it will be 20m/s so the time TAKEN by the train to cross a bridge

Time = distance/speed

625/20

=31.25 second



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