Odpowiedzi

2009-12-14T18:20:31+01:00
V=s/t
v= 54km / 45min = 54000m / 2700s = 20 m/s
1 5 1
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2009-12-14T18:20:38+01:00
V=s/t
s=54 km=54000m
t=45min= 2700s
V=54000/2700
V=20m/s
1 5 1
2009-12-14T18:22:12+01:00
T= 45min = 2700s
s= 54km = 54000m
v= s/t
v= 54000m/2700s=20m/s