Question

Train 150 metre long is running at 72 km per hour if cross a bridge in 13 seconds find the length of the bridge

Answer 1

Answer:

110m

Step-by-step explanation:

The train "cross the bridge in 13 sec."

That means that 13 seconds after the front of the train reached the bridge, the whole train had completely cleared the bridge.

During those 13seconds=13/3600hours

a train going at 72km/hr=72.1000 m/hour

would travel 72.1000m(13/3600)hours=260m .

That means that 13 seconds after the front of the train reached the bridge,

the front of the train had traveled 260m,

and the back of the train, 150m behind the front,

had just cleared the bridge.

Then the length of bridge = 260-150= 110. PLEASE MARK ME AS BRAINLIEST