Question

A bridge is 400 m long. A 150 m long train crosses the
bridge at a speed of 50 m/s. Time taken by the train to
cross it.​

Answer 1

Answer:

11 second

Explanation:

total distance train should cover is 400+150 m

speed 50 m/s

hence

time = distance /speed

so,

time = 550/50 = 11 s

Answer 2

The train will take 11 sec to cross the bridge.

Given:

The length of the bridge= 400m

The length of the train= 150 m

The speed of the train= 50m/s

To Find:

Time taken by the train to cross the bridge.

Solution:

When the train crosses the bridge it crosses the length of the bridge and the length of itself.

The total length crossed by the train is = 400+150= 550m.

We know that, $Speed=\frac{Distance}{Time}$

So $Time= \frac{Distance}{Speed}$

$Time= \frac{550}{50}$$= 11 s$

Hence, the train will cross the bridge in 11s.

#SPJ3