Vectorial:T₃+G=0
Scalar:T₃=mg=122 N
Vectorial:T₁+T₂=T₃
θ₁+θ₂=90°
Ox:T₁cosθ₁-T₂cosθ₂=0=>T₂=T₁cosθ₁/cosθ₂ (1)
Oy:T₁sinθ₁-T₂sinθ₂-T=0 (2)
Din(1) si(2)=>T₁=mgcosθ₂/sin(θ₁+θ₂)=122*cos53⁰/sin(47°+53°)=122*0,6/1=73,42 N
T₂=mgcosθ₁/sin(θ₁+θ₂)=122*cos47°/sin(47°+53°)=122*0,68/1=83,2 N
T₁<100
T₂<100
=>cablurile rezista
