Consider the following problem from Hibbeler's Engineering Mechanics, Statics. (13th edition)
and the associated free body diagram and equilibrium equations
The problem is solved by equating $N_B$ to zero. Let's say I was asked to determine all support reactions and the force in cable CD (as in the picture, not requiring the ramp to just start being lifted) It seems that 3 equilibrium equations are not sufficient, as there are 4 unknowns $F\, ,N_B\,,A_x\,and\, A_y $
What renders this statics problem unsolvable, is it statically indeterminate?