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Dane:
t-15min
s-⁴/₅ km = 800m
V=s/t
V=800m : 15min = 53(3)m/s
Robert:
Dane:
t-16min
s-⁵/₆ km = 833,(3)m
V= s/t
V= 833,(3) : 16 = 52,083(3)m/s
Odp. Jurek przemieszczał się szybciej.
Jurek:
15min - 4/5km
x min - 1km
x= 1*15/4/5
x= 15*5/4
x= 75/4=18min 45s
Robert:
16min - 5/6km
y min -1km
y=1*16/5/6
y= 16/5/6
y= 96/5= 19min 12s
Odp.:Szybciej poruszał się Jurek.