Question

Calculate the time taken by a train 150 meters long running at 54 kmph for passing an electric pole.​

Answer 1

TIME TAKEN=SPEED/DISTANCE

SPEED=54 KMPH

DISTANCE =150 METERS

SO,

54/750=0.36

TIME TAKEN=0.36

I THINK THIS IS RIGHT ANSWER

Answer 2

The time taken by a train is 10 seconds.

We need to change the speed from km per hour to meter per second.

As, 54km/hour

$\frac{54 \times 1000}{( 60 \times 60)} = \frac{54 \times 5}{18}$

=15

=15 metres

As the train passes an electric pole, only train length is considered.

150 meter long ,train length.

As the train takes 1 second to cover 15 meter distance.

$\frac{150}{15}$

= 10

Therefore it takes 10 seconds by train.