Find the intensity of the rotation effect moment that the force system will create around the OE axis. Reduce the force system to f₁and f₂ forces that meet the following conditions. f1= acts in DE direction f2= Influence line passes through point (a,b,0). Vector expressions of forces, values of constants a and b will be determined. Given ∣F₁∣=6 N ∣F₂∣=5sqrt(5)N ∣F₃∣=10 N