a) 12cm/min =... cm/s b) 144 km/h = ...m/s c)3000cm/min = ...m/s d)108 km/h =... m/s DAJE NAJ

12 cm/min = 12 cm/60 s = 0,2 cm/s 144 km/h = 144*1000 m/3600 s = 40 m/s 3000 cm/ min = 30 m/60 s = 0,5 m/s 108 km/h = 108*1000 m/ 3600 s = 30 m/s