Odpowiedź:
Wyjaśnienie:
a)V1=s/t=120km/70min= 120km/1.17h≈102km/h
V2=s/t=80km/30min=80km/0.5h=160km/h
b)V=[tex]\frac{s1+s2}{t1+t2}[/tex]
s(cala) = 120km+80km=200km
t(cala) = 70min+30min = 100min ≈ 1.7h
V=[tex]\frac{200km}{1.7h} = 111.6km/h[/tex]
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Odpowiedź:
Wyjaśnienie:
a)V1=s/t=120km/70min= 120km/1.17h≈102km/h
V2=s/t=80km/30min=80km/0.5h=160km/h
b)V=[tex]\frac{s1+s2}{t1+t2}[/tex]
s(cala) = 120km+80km=200km
t(cala) = 70min+30min = 100min ≈ 1.7h
V=[tex]\frac{200km}{1.7h} = 111.6km/h[/tex]