Răspuns :
m=2 kg
k=400N/m
g=10N/kg
Δl=?
k=Fe/Δl
Fe=G
G=m*g
Δl=Fe/k ⇒G/k=m*g/k
Δl=2kg*10N/kg/400N/m
Δl=20N/400N/m
Δl=0,05m=5cm
k=400N/m
g=10N/kg
Δl=?
k=Fe/Δl
Fe=G
G=m*g
Δl=Fe/k ⇒G/k=m*g/k
Δl=2kg*10N/kg/400N/m
Δl=20N/400N/m
Δl=0,05m=5cm
Se da:
[tex]m=2kg\\ k=400\frac{N}{m}\\ dl=?cm\\ Formule:\\ dl=\frac{Fel}{k}\\ dl=\frac{m*g}{k}\\ Calcule:\\ dl=\frac{2*10}{400}=0,05m=5cm[/tex]
[tex]m=2kg\\ k=400\frac{N}{m}\\ dl=?cm\\ Formule:\\ dl=\frac{Fel}{k}\\ dl=\frac{m*g}{k}\\ Calcule:\\ dl=\frac{2*10}{400}=0,05m=5cm[/tex]
