Final answer:
The question involves the application of statics and mechanics of materials to calculate the stresses at the extreme fibers and the total tensile force on a T-section beam under bending moment.
Step-by-step explanation:
The student question involves calculating the stresses at the extreme fibers of a T-section wooden beam subjected to a bending moment, as well as determining the total tensile force exerted on the cross-section. This is an application of the engineering principles of statics and mechanics of materials, specifically bending stress and the calculation of normal force resulting from bending.
For the two wooden planks forming a T-section, you can consider the dimensions provided and the bending moment to determine the stress distribution across the beam's cross-section. Using the formula for bending stress, σ = M*y/I, where σ is the stress, M is the moment, y is the distance from the neutral axis to the fiber, and I is the moment of inertia of the section, you can calculate the stress at the extreme fibers. The total tensile force would be the integral of the stress over the area in tension.