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v₁= 15km/h s=?
v₂=3km/h
t= 2godziny 30 minut= 150 minut= 9000s
v=s÷t/×t
v×t=s
v=v₁×v₂
v=45km/h= 12,5m/s
s= 12,5m/s ×9000s= 112500m=112,5 km