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Equilibrio de un cuerpo rígido

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5.3 Ecuaciones <strong>de</strong> <strong>Equilibrio</strong><br />

Ecuaciones <strong>de</strong> equilibrio alternativas<br />

• Para problemas coplanares <strong>de</strong> equilibrio,<br />

∑F x<br />

= 0; ∑F y<br />

= 0; ∑M O<br />

= 0 (respecto al eje z, O<br />

cualquier p<strong>un</strong>to).<br />

• 2 formas alternativas <strong>de</strong> las 3 ecuaciones <strong>de</strong> equilibrio<br />

in<strong>de</strong>pendientes: AB no II al eje y , ABC no colineales.<br />

∑F x<br />

= 0; ∑M A<br />

= 0; ∑M B<br />

= 0 , ∑M A<br />

= 0; ∑M B<br />

= 0; ∑M C<br />

= 0<br />

(F Ry<br />

=0) (F Ry<br />

=0) ; (F Rx<br />

=0)

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