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O forta de 30N, actionand in lungul unui resort, ii produce acestuia o deformare de 6 cm. Ce valoare are o alta forta, care, actionand pe aceeasidirectie, produce aceluiasi resort o deformare de 10cm?

Răspuns :

[tex]F_1=kx_1\ \ \ \ \Rightarrow \ \ \ \ k=\dfrac{F_1}{x_1}\\ \\ \\ F_2=kx_2=\dfrac{F_1}{x_1}x_2=\dfrac{30}{6}\cdot 10=50\ N.[/tex]