Odpowiedzi

2009-11-24T18:24:20+01:00
2009-11-24T18:24:41+01:00
T = 2,5h
s= 160 km
v= ? = s/t [km/h]

v = 160 / 2,5 = 64 km/h
2009-11-24T18:25:45+01:00
160 km = 160000m
t = 2,5h = 150 min = 9000s - zamiana jednostek

V=s/t
V = 160000/9000 = 17 m/s czyli 64 km/h