1. **Problem Statement:** A wedge is jointed and subjected to forces. We need to find the force and tension by taking moments. 2. **Understanding the Problem:** Taking moments means summing the moments (torques) about a point to find unknown forces. The moment of a force is given by the formula: $$\text{Moment} = \text{Force} \times \text{Perpendicular distance}$$ 3. **Set up the problem:** Assume a wedge with a force $F$ applied at a distance $d$ from the pivot point. Let the tension in the joint be $T$ acting at distance $r$ from the pivot. 4. **Moment equation:** Taking moments about the pivot, $$F \times d = T \times r$$ 5. **Solve for tension $T$:** $$T = \frac{F \times d}{r}$$ 6. **Interpretation:** The tension $T$ depends on the applied force $F$ and the ratio of distances $d$ and $r$. This is a fundamental principle in levers and wedges. **Final answer:** $$T = \frac{F \times d}{r}$$ This formula allows you to calculate the tension in the jointed wedge when the force and distances are known.