∑X=0XA+XB+Tcos30·cos60=0 2r=0 Y-T.cos30cos30=0 2Z=0 Z,+Z+T. cos60-G=0 ∑m,=0zB·l+Tcos60·lLoc-G·=L=0 m,=0-rcos60·la+G·=Ig=0 ∑m2=0-XBLB+rcs30cos60·L T·cos300·cos30°·La=0 T=200NXA=866NF4=150N z4=100NX=Z=0