Przelicz jednostki prędkości
1. 8m/s = ........................km/h
2. 2 m/s= ........................km/h
3. 15 m/s ........................km/h
4. 100 km/h = ................m/s
5. 36 km/h = .................m/s
6 . 142 km/h=.................m/s