zamień jednostki plisss daje naj!!!!

7500 cm/s = 7500·0,01m/s = 75 m/s 70 km/h = 70·1000 m/3600 s = 19,4 m/s 300 m/min = 300 m/60 s = 5 m/s 10 m/s = 10·0,001 km/ 1/3600 h = 36 km/h 1800 cm/min = 1800·0,01 m/60 s = 0,3 m/s 30 m/s = 30·0,001 km/1/3600 h = 108 km/h 7 km/h = 7·1000 m/3600 s = 1,94 m/s 8600 cm/s = 8600·0,01 m/s = 86 m/s 12 km/h = 12·1000 m/3600 s = 3,3 m/s 19 m/s = 19·0,001 km/1/360 h = 68,4 km/h