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Statica Rigidului<br />
• Descompunerea forţelor<br />
– inversarea procesului de<br />
calcul a rezultantei<br />
• Rezultanta unui sistem de forţe e concurente<br />
R<br />
( ∑ X ) 2 + ( ∑Y<br />
) 2<br />
+ ( ∑ ) 2<br />
= Z<br />
• Condiţia ia de echilibru static<br />
∑ X = 0; ∑Y<br />
= 0; ∑ =<br />
R = 0 ⇒<br />
Z 0
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