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Ex din poza va rog mult!!!

Ex Din Poza Va Rog Mult class=

Răspuns :

Se da:
[tex]S1=10cm^{2}\\ m1=1kg\\ S2=100cm^{2}\\ k=2000\frac{N}{m}\\ dl1=?m\\ dl1/dl2=?\\ Formule:\\ F1/F2=S1/S2\\ m*g/k*dl1=S1/S2\\ S2*m*g=S1*k*dl1\\ dl1=S2*m*g/S1*k\\ dl1/dl2=(S2*m*g/S1*k)/(m*g/k)\\ dl1/dl2=S2/S1\\ Calcule:\\ dl1=100*1*10/10*2000=0,05m\\ dl1/dl2=100/10=10\\[/tex]