Question

if a train with a speed of 60 km / hr ,crosses a pole in 30 second, what is the length of the train ( in metres )?​

Answer 1

Answer:

We know that,

when a train crosses a pole,it covers the distance equal to its length

the time taken by the train =30 seconds

and speed =60km/h

Then,

The length of the train =60 km/h ×30 secomds

60×

18

5

×30 metres

10×

3

5

×30

=500 metres

.

Answer 2

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The length of the train is equal to the distance it traveled after 30 seconds. The distance traveled is the product of the train’s speed and the elapsed time. The train’s speed in km/h must first be converted to meters per second.

Converting the train’s speed:-

Train’s speed = 60 km/h

Train’s speed = 60,000 m / 3,600 s

Train’s speed = 50/3 m/s

Solving for the distance traveled in 30 seconds:-

Distance traveled = Train’s speed * elapsed time

Distance traveled = 50/3 m/s * 30 s

Distance traveled = (1500 / 3) m

Distance traveled = 500 m

So the length of train is 500 m

$\sf \red{❥Hope \: it \: helps \: you....}$