As illustrated, a beam turns about a pivot at one end. The beam has a weight of $6.0\,\text{N}$, and this weight acts at point X, which is $40\,\text{cm}$ from the pivot. A $4.0\,\text{N}$ force is exerted on the beam so that it stays balanced in a horizontal position. In what direction, and at what point, is the $4.0\,\text{N}$ force exerted?
- Avertically downwards at $20\,\text{cm}$ to the left of X
- Bvertically downwards at $20\,\text{cm}$ to the right of X
- Cvertically upwards at $20\,\text{cm}$ to the left of X
- Dvertically upwards at $20\,\text{cm}$ to the right of X