A horizontal beam of uniform density is balanced in equilibrium and is pivoted at its right-hand end. A $60\,\text{N}$ force acts vertically upward on the beam, as shown. What is the beam’s weight?
- A$36\,\text{N}$
- B$40\,\text{N}$
- C$90\,\text{N}$
- D$100\,\text{N}$