An $8$ m long simply-supported elastic beam of rectangular cross-section ($100$ mm $\times 200$mm) is subjected to a uniformly distributed load of $10$ kN/m over its entire span. The maximum principal stress (in MPa, up to two decimal places) at a point located at the extreme compression edge of a cross-section and at $2$ m from the support is _______

Shear stress is zero at extreme edge is 0. Bending stress is only stress present and it's value is 90mpa hence principal stress is 90mpa
160 points