m=7 kg K=? delta=300cm = ? m G= ? Ajjjjjjuutooor

Răspuns :

G=m×g
G=7kg×9.8N/kg=68.6N
G=F
K=F/DL
K=68.6N/3m
k=22.8(6)N/m
sper sa primesc coroana