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N32<br />
N76<br />
N72<br />
N47<br />
N43<br />
N27 = -1÷sen26,57° N23+6-2 = 0<br />
N27 = -2,23 t N23 = -4 t<br />
Nó “3” Forças Verticais (V) Forças Verticais (H)<br />
N37<br />
ΣFV = 0 ΣFH = 0<br />
N37 = 0 -N32+N34 = 0<br />
-(-4)+N34 = 0<br />
N34 = -4 t<br />
Nó “7” Forças Verticais (V) Forças Verticais (H)<br />
2<br />
N73<br />
N34<br />
N74<br />
ΣFV = 0 ΣFH = 0<br />
-2+N76.sen26,57°-N72.sen26,57°-N73-N74.sen26,57°=0 -N76.cos26,57°-<br />
N72.cos26,57°+N74.cos26,57°=0<br />
-2+6,7.sen26,57°-(-2,23).sen26,57°-0-N74.sen26,57°=0 -6,7.cos26,57°-(-<br />
2,23).cos26,57°+4,47.cos26,57°=0<br />
-2+3+1-N74.sen26,57° = 0 -6+2+4 = 0<br />
N74 = 2÷sen26,57° 0 = 0<br />
N74 = 4,47 t<br />
N37<br />
Nó “4” Forças Verticais (V) Forças Verticais (H)<br />
2<br />
N76<br />
2<br />
N72 N73 N74<br />
N47<br />
2<br />
N32<br />
N76<br />
N72<br />
N47<br />
N43<br />
N34<br />
N74<br />
ΣFV = 0 ΣFH = 0<br />
16
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