Question

A bridge is 500 m long. A 100 M long train crosses the bridge at a speed of 30 M/sec. Find the time taken by the train to cross it?

Answer 1

A bridge is 500 m long
And a train is 100 m long
Cross the bridge at a speed of 30 m/s .
s=500+100 = 600
To find the time taken to cross it.
600/30=20

Só the time taken to cross it is 20 min per second.