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m=4t, Constanta Elastica - 400N/m G=? Delta l=?

Răspuns :

[tex]m=4t=4000 kg\\G=mg=4000*10=40000 N=40kN\\G=40 kN\\G=F_{el}=40 kN\\F_{el}=k\Delta l=>\Delta l=\frac{F_{el}}{k}=\frac{40000}{400}= 100 m[/tex]