Question

A 180 metres long train takes 9 seconds to pass a vertical pole. what is the average speed of the train in kilometres per hour
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Answer 1

Answer:

20m/s

Step-by-step explanation:

d=180m

t=9s

s=?

we know that,

s=d÷t

=180÷9

=20m/s

Hence, speed = 20m/s

Answer 2

Answer average speed =distance/time=180/9=20m/s

1m/s=18/5 kmph 20m/s=(20)18/5 kmph=72 kmph.