Final answer:
To find the bending stress and shear stress on a seesaw board, principles of mechanics are used but calculations require specific weights, material properties, and dimensions, which were not provided in the question.
Step-by-step explanation:
The question pertains to determining the maximum bending stress and shear stress in a seesaw board when two children of equal weight 'w' N are sitting x meters from the fulcrum. Assuming the board is 3x meters long, y mm wide, and z mm thick, certain principles of mechanics and material strength need to be applied to solve for stresses. However, without specific values for the weights, dimensions, and material properties, it's not possible to calculate these stresses. Mathematically, the bending stress (σ) in a beam is calculated using the formula σ = My/I, where M is the bending moment, y is the distance from the neutral axis, and I is the moment of inertia of the beam's cross-section. Shear stress (τ) can be calculated as τ = VQ/It, where V is the shear force, Q is the first moment of area, and t is the thickness of the beam.