Question

A train is running at 36km/h.If it crosses a pole in 15 seconds,find its length.

Answer 1

In this question, we just have to calculate the distance covered by the train
i.e. 36 kmph *15 s = 36*5/18*15 = 10*15 = 150 m.
So, Length of train = 150 m.

Answer 2

Answer:

The length is 15 m.

Step-by-step explanation:

Given : A train is running at 36 km/h. If it crosses a pole in 15 seconds.

To find : Its length?

Solution :

Speed of the train is S=36 km/hr

The time taken to cross the pole is 15 seconds.

Convert into hours.

1 hr=3600 seconds.

$1 s=\frac{1}{3600} h$

$15 s=\frac{15}{3600} h$

So, Time is $T=\frac{15}{3600} h$

We know, $\text{Distance}=\text{Speed}\times \text{Time}$

$\text{Distance}=36\times \frac{15}{3600}$

$\text{Distance}=0.15 km$

or $\text{Distance}=15m$

Therefore, The length is 15 m.