Question

the train whose length is 150 m passes a telegraph pole in 10 seconds find the speed of train in kilometre per hour​

Answer 1

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Q. The train whose length is 150 m passes a telegraph pole in 10 seconds. Find the speed of the train in kilometer per hour.

A. Length of train = Distance = s = 150 m

   Time taken by train = Time = t = 10 sec

Therefore, speed (v) = s/t

= 150/10 = 15 m/s

We know,

1 m/s = 18/5 km/h

Therefore,

15 m/s * 18/5 = 3 * 18 = 54 km/h.

Hence, the speed of the train in kilometer per hour is 54 or 54km/h

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Answer 2

Answer:

D=150

T=10

Speed=D/T

speed=150/10=15m/sec

1m/sec= 18/5 km/hr

15* 18/5 =54km/hr

(Ans=54.)