Odpowiedzi

2010-04-13T11:26:24+02:00
S=v*t
0,5h=1800s
s=8*1800
s=14400m = 14,4km
2010-04-13T11:27:41+02:00
V=s/t
8m/s=x:1800s
x=1800s * 8m/s= 14400m