wich of the following is equal to 72 kmph..... A.20 m/s. .40 m/s B.30 m/s. .10 m/s

km -> m ( ×1000)
hour --> second ( × 3600)

72 km / 1 hour
= (72 x 1000 m) / (3600 s)
= 20 m/s

A

72 km/jam = 20 m/s
caranya :
72 km = 72000 m
1 jam = 3600 sekon

72 km/s = 72000/3600
= 20 m/s → À. 20 m/s

Semoga terbantu