The board is used as a simply supported floor joist. If a bending moment ot M = 800 lb ∙ f...

The board is used as a simply supported floor joist. If a bending moment ot M = 800 lb ∙ ft is applied 3° from the Z-axis, determine the stress developed in the board at the corner A. Compare this stress with that developed by the same -moment applied along the z axis (θ = 0°). What is the angle α for the neutral axis when θ = 3°? Comment: Normally, floor boards would be nailed to the top of the beams so that θ = 0° and the high stress due to misalignment would not occur.