A beam of uniform construction is placed on two supports, X and Y, as illustrated. Its length is $20.0\,\text{m}$ and its weight is $200\,\text{N}$. A man whose weight is $700\,\text{N}$ is standing on the beam $6.0\,\text{m}$ from support X. The beam is balanced in equilibrium. What is the contact force exerted by support X on the beam?
- A$310\,\text{N}$
- B$450\,\text{N}$
- C$590\,\text{N}$
- D$900\,\text{N}$