Odpowiedź:
Wyjaśnienie:
1. 25 m/s = 25*1/1000 :1/3600 km/h=25/1000*3600 km/h=25*3,6 km/h=90 km/h
2.12m/s = 12*1/1000 :1/3600 km/h=12/1000*3600 km/h=12*3,6 km/h=43,2 km/h
3. 8km/s =8* 1000 m/s=8000 m/s
4. 14 dm/min = 14*1/10 :1/60 m/s=14/10*60 m/s=14*6=84 m/s
5. 100 km/h =100*1000/3600 m/s=100 000/3600 m/s=27,(7) m/s