M=20 Kg
G = 10 N/kg
K=40s/m
G=? dl= ?

G = Fe​


Răspuns :

G=m×g

G=20kg×10N/kg

G=200N

Fe=k×Δl

k=Fe/Δl

Δl=Fe/k

Fe=G

Δl=G/k

Δl=200N/40N/m

Δl=5m