Odpowiedzi

2010-03-29T16:25:55+02:00
75 KM

180KM=18000m:240 min=75KM

4ha=240min
2010-03-29T16:26:54+02:00
V=s/t V=180000m/14400s=12,5 m/s
2010-03-29T16:39:07+02:00
V=s/t
s=180km
t=4h
v=180km/4h= 45km/h
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