Question

a train 150m long is running 72km/hr. it crosses a bridge in 13 seconds . find the length of the bridge

Answer 1

Answer:

110m is the length of the bridge.

Answer 2

Question→a train 150m long is running 72km/hr. it crosses a bridge in 13 seconds . find the length of the bridge.

Answer:

We can solve using this equation:

(length of bridge + length of train) = speed of train * time to cross bridge

So,

x + 150 = 72km/h × 13s

Convert 72km/h to m/s

→ 72000m/3600s = 20m/s (speed of train)

Now,

solve: x + 150m = 20m/s *13s

→ x + 150m = 260m

→ x = 260m - 150m

→ x = 110m (length of bridge)

hope it helps you