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Vt=s/:V
t=s/V
s=1000m
a)
Traktor V=20 km/h
s=1000m=1km
t=s/V
t=1/20 h
t=1/20 *60min=3 min
b)
Pszczoła V=2 m/s
s=1000m
t=s/V
t=1000/2 s
t=500s
c)
Ryba V=2,5 m/min
s=1000m
t=s/V
t=1000/2,5 min
t=400min
d)
Robot V=50 cm/min
s=1000m=100000cm
t=s/V
t=100000/50 min
t=2000 min
pszczoła- 500 sekund, czyli 8 minut i 33 sekundy
ryba- 7 minut i 6 sekund
robot- 2000 minut, czyli 33 godz i 33 minuty