Question

a train 400m long is travelling at a speed of 45 km/h . how long will it take to cross an electric pole.​

Answer 1

~Solution :-

Speed of the train = 45 kmph

$\to \sf{ \frac{(45 \times 1000 )}{( 60 \times 60)}= ( \frac{45000}{3600}) =12.5 m/s}$

• Here, Train crossing pole means crossing its own length.

Thus,

Time taken to cross the pole;

$\to \sf{ \frac{ (400 m) }{ (12.5 m/s)} = \bf \red{32 seconds }}$

• Hence, the time to travel the pole will be $\tt{32 second}$.

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Answer 2

Answer:

Good question very good question

But i don't know the answer