1 etap
t=7min=420s
s=8km=8000m
v1=s/t
v1=8000/420=19 i 1/21m/s
2 etap
t=5min=300s
s=14km=14000m
v2=s/t
v2=14000/300=46 i 2/3 m/s
Vsr=(V1+V2)/2
Vsr=(19¹/₂₁+46²/₃)/2
Vsr=65 i ⁵/₇:2=32 i ⁶/₇m/s
odpsrednia predkosc w 1 etapie to 19 i 1/21ms w drugim to 46 i 2/3 m/s a laczna srednia to 32 i 6/7 m/s
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1 etap
t=7min=420s
s=8km=8000m
v1=s/t
v1=8000/420=19 i 1/21m/s
2 etap
t=5min=300s
s=14km=14000m
v2=s/t
v2=14000/300=46 i 2/3 m/s
Vsr=(V1+V2)/2
Vsr=(19¹/₂₁+46²/₃)/2
Vsr=65 i ⁵/₇:2=32 i ⁶/₇m/s
odpsrednia predkosc w 1 etapie to 19 i 1/21ms w drugim to 46 i 2/3 m/s a laczna srednia to 32 i 6/7 m/s