72 km/jam=..... m/s beserta carana ya

72 km = 72000 m
1 jam = 3600 s

72km/jam = 20m/s

1 km = 1.000 m
1 jam = 3.600 s

Maka,
1 km/jam = 1.000m/3.600s
1 km/jam = 10m/36s
1 km/jam = 5m/18s ⬅ RUMUS

72 km/jam = 72 × 5m/18s
72 km/jam = 4 × 5 m/s ... [4 itu dari 72 : 18]
72 km/jam = 20 m/s ✔