Question

72km/h = m/s ?

18km/h = m/s ?

108km/h = m/s ?

Answer 1

72km/h : 3,6 = 20m/s

18 km/h : 3,6 = 5m/s

108hm/h : 3,6 = 30 m/s :))

Answer 2

72km/h = 72000m/60 * 60s = 72000m/3600s = 20m/s

18km/h = 18000m/3600s = 5m/s

108km/h = 108 000m/3600s = 30m/s