am nevoie rapid dau 5 stele
![Am Nevoie Rapid Dau 5 Stele class=](https://ro-static.z-dn.net/files/da1/f4aa7c0ac4fe016c3735b8d4d23e30e3.jpg)
Răspuns:
Greutatea= masa* acceleratia gravitationala
g=~10
G=55*10=550N