The figure shows a frame with a 100N object hanging on it. Determine the magnitude and direction of forces exerted on AB and BC respectively.
2. Relevant equations
∑Fx=0, ∑Fy=0, ∑M=0
3. The attempt at a solution
I believe this question is unsolvable. The free body diagram of the frame is as follows:
There are 4 unknowns in the diagram but we can only write down 3 equations. Hence, there is no way we can solve this problem.
Is my reasoning correct?