Answer :
Final Answer:
The internal normal force at point C is 49 kN.
Explanation:
To calculate the internal normal force at point C, we need to understand the equilibrium of forces acting on the structure. In structures like beams, the internal normal force arises due to the balance between external loads and reactive forces. If the structure is in static equilibrium, the internal normal force is equal in magnitude and opposite in direction to the applied external force.
In this case, since the external force F is given as 49 kN, and we assume that the structure is in static equilibrium, the internal normal force at point C is also 49 kN. This assumes that there are no other external loads or constraints affecting the structure.
It's important to note that this explanation relies on the assumption of static equilibrium and the absence of other forces acting on the structure. Real-world scenarios may involve more complex analyses, but based on the provided information, the internal normal force at point C is equal to the applied external force F.