Question

Speed = 72km/h,express in m/s

Answer 1

Answer:

1200m/s

Explanation:

1hour=60 min

1 km=1000 m

= 72000/60=1200m/s

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Answer 2

Answer:

72km/h= 72*km/h= 72*(1000m/3600s)                     [1km=1000m  & 1h =3600s]

20m/s

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