Final answer:
Without a diagram or further details, it is impossible to provide specific values for the normal force, shear force, and moment at point C. Typically, these quantities are found using a free-body diagram and applying equilibrium equations for forces and moments.
Step-by-step explanation:
The student has asked to determine the normal force, shear force, and moment at point C, given that P1 = 12kN and P2 = 18kN. However, without additional information such as a diagram, the locations of the forces, or the geometry of the structure, it is not possible to provide a definitive answer. To solve this type of problem, one would typically:
- Draw a free-body diagram showing all the forces acting on the structure.
- Apply equilibrium equations to solve for the normal force, shear force, and moment. Equilibrium equations are ΣFx = 0, ΣFy = 0, and ΣM = 0 where ΣFx and ΣFy represent the sum of horizontal and vertical forces, respectively, and ΣM represents the sum of moments about a point.
An example of determining the normal force would involve rearranging the terms in the equilibrium equation relevant to the normal force. For shear force, the equilibrium equation related to shear would be used, and for moment, the sum of moments about point C would be considered.