Odpowiedzi

2010-04-07T13:43:40+02:00
V= s/t
s- droga
t-czas
V = 1km/1min --> km/h
V= 1/ 1:60= 60km/h
2010-04-07T13:43:48+02:00
1 km = 1000 m
1 min = 60 s
vśr = 1000m : 60 s = 16,(6) m/s ≈ 16,7 m/s