Odpowiedzi

2010-04-14T16:40:33+02:00
2010-04-14T16:45:28+02:00
Dane:
m=2 kg
h=6
g= 10N\kg

Epg= m × g × h
Epg= 2*6*10
Epg=120J


J= kg* N\kg* m= n*m= J