Beam XY is uniform, has a length of $100\,\text{cm}$ and a weight of $4.0\,\text{N}$. It is supported on a pivot placed $60\,\text{cm}$ from end X. An $8.0\,\text{N}$ load is suspended from the beam at a point $10\,\text{cm}$ from end X. Balance is maintained by a force $F$ applied to the beam $80\,\text{cm}$ from end X. What is the size of force $F$?
- A$8.0\,\text{N}$
- B$18\,\text{N}$
- C$22\,\text{N}$
- D$44\,\text{N}$