Question

change the speed of 6 metre per second into kilometre per hour

Answer 1

for changing the speed from m/sec to km/ hour always divide by 18/5
so 6*18/5 =21.6 km/h

Answer 2

Hey friend here's your answer
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Speed in one second = 6 metre

Speed in 3600 seconds = (6 × 3600) metre
= 21600 metre

speed in 1 hr is 21600 metre

So that the speed in 1 hr is 21.6 kilometre
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#Hope its help you dear#
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