The diagram represents a uniform beam PQ. Its length is $3.0\,\text{m}$ and its weight is $50\,\text{N}$. The beam rests on a pivot that is $1.0\,\text{m}$ from end P. A load with weight $W$ is suspended from end P, and the beam is balanced. What is the value of $W$?
- A$25\,\text{N}$
- B$50\,\text{N}$
- C$75\,\text{N}$
- D$100\,\text{N}$