A shop sign with weight $75\,\text{N}$ is suspended from a frame fixed to a vertical wall. The frame is made up of a horizontal rod XY and a rod YZ, which makes an angle of $30^\circ$ to the horizontal. Rod XY is hinged to the wall at X and its length is $0.50\,\text{m}$. Take the weights of the rods to be negligible. What horizontal force does the wall exert on rod XY?
- A$0\,\text{N}$
- B$43\,\text{N}$
- C$130\,\text{N}$
- D$150\,\text{N}$