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V=s/t --> t=s/v
t=100m/(12-4)=12,5 s
a=(12-4)/12,5=0,64m/s²
Powodzenia :)
t=100m/(12-4)=12,5 s
a= (12-4)/ 12,5= 0,64m/s²
Odp. Przyśpieszenie rowerzysty wynosi 0,64 m/s²