3-2. The members of a truss are pin connected at joint O. Determine the magnitudes of F, and F₂ for equilibrium. Set 0 = 60°. 3-3. The members of a truss are pin connected at joint O. Determine the magnitude of F, and its angle for equilibrium. Set F₂ = 6 kN. 5 kN 30° 70° 7 kN Probs. 3-2/3 F₁ x