Question

A seesaw is occupied by two children of equal weight "W" N. The center of gravity of each child is x meters from the fulcrum. The length of the board is 3x meters, y mm wide and z mm thick. Determine the maximum bending stress and shear stress in the board.

Answer 1

To determine the maximum bending stress and shear stress in the board of the seesaw, we need to consider the weight of the children and the dimensions of the board.

Step-by-step explanation:

To determine the maximum bending stress and shear stress in the board of the seesaw, we need to consider the weight of the children and the dimensions of the board.

The maximum bending stress occurs at the point of maximum deflection, which is at the center of the board. To calculate this stress, we can use the formula: bending stress = (force x length) / (2 x moment of inertia).

The maximum shear stress occurs at the edges of the board, where the force is distributed. To calculate this stress, we can use the formula: shear stress = force / (area x thickness).