Odpowiedź:
Energia kinetyczna Ek =Ep
Ep=m*g*h - > h=E/(m*g) =64/2*10 =3,2m
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Odpowiedź:
Energia kinetyczna Ek =Ep
Ep=m*g*h - > h=E/(m*g) =64/2*10 =3,2m