Question

A train 150 m long is running at 72 km/hr . It crosses a bridge in13 second . Find the length of the bridge. Speed,time and distance is given pls find the log the bridge....

Answer 1

Let the length of the bridge be x m.   So, the distance for the train to travel will be 150 + x metre.   As speed is equal to distance/time  72*5/18 = (150+x)/13   20*13 = 150+x   260-150=x, x= 110 m

Answer 2

$here \: is \: the \: answer \: of \: your \: question$


→ According to question we have given,

Speed of train = 72 km/he

Speed of train in m/s = 72 x 5/18
= 20 m/s

In one second train covers = 20 m

So, in 13 second = 20 x 13 = 260 m

Now,

When train covers the bridge it means it covers the length of bridge.

Total distance covered by train = 260 m

And length of train = 150 m

So, length of bridge = Toatal distance covered by train - length of train

= 260 - 150

= 110 m


$hope \: it \: helps \: you.$