1. **Problem Statement:** Determine the reaction forces in the beam and the shear and moment at point B (just before the support). 2. **Step 1: Identify the beam supports and loads.** - Typically, a beam with supports will have reaction forces at the supports. - Let’s denote the reaction forces at the supports as $R_A$ and $R_B$. 3. **Step 2: Apply equilibrium equations.** - For a beam in static equilibrium, the sum of vertical forces and moments must be zero. - Sum of vertical forces: $$\sum F_y = 0 = R_A + R_B - \text{total load}$$ - Sum of moments about a point (usually one support): $$\sum M = 0$$ 4. **Step 3: Calculate reaction forces.** - Use moment equilibrium about point A to find $R_B$. - Use vertical force equilibrium to find $R_A$. 5. **Step 4: Determine shear force at point B.** - Shear force just before support B is the algebraic sum of vertical forces to the left of B. 6. **Step 5: Determine bending moment at point B.** - Moment at B is the sum of moments caused by loads and reactions to the left of B. 7. **Note:** Without the exact figure and load values, the formulas are general. **Final answers depend on the specific loads and distances given in the figure.**