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Pociąg rozpędził się w czasie 30 s od chwili ruszenia do prędkości 54 km/h. Jakie było jego średnie przyspieszenie?

Odpowiedź :

Falkretgo Falkretgo

t=30s

v=54km/h=15m/s

a=v/t

a=15m/s : 30s

a=0,5m/s^2

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