Question

A train of certain length travelling with a uniform speed of 10m/s crosses a bridge of 600m in 80s. Find the length of the train

Answer 1

The speed of the train is constant everywhere
So
speed=distance/time
speed we know as 10m/s
distance=600+x
time =80s
So
(600+x)/80=10
600+x=800
x=200
hence the length of the train is 200m