Răspuns :
Forta elastica Fe=k*deformatia
k=1000N/m
deformatia=0.09 m
Fe=1000*0.09=90N
Fe=G=m*g m=Fe/g=90/10
m=9kg
k=1000N/m
deformatia=0.09 m
Fe=1000*0.09=90N
Fe=G=m*g m=Fe/g=90/10
m=9kg