The state of plane stress at a point on a body can be depicted by the mohr's circle below. point x has coordinates (−10,−21) mpa and point y has coordinates (25,21) mpa.
determine the normal and shear stresses associated with a rotation of the stress element θ=28°. remember that a negative sign indicates a clockwise rotation and a positive sign indicates a counter-clockwise rotation. note that you can use the mohr's circle to obtain your answers graphically or you can apply the stress transformation equations.
determine the σx′, σy′ , and τx′y′