In a stressed body, an elementery cube of material is taken at a point with its faces perpendicular to $x$ and $y$ reference

axes. Tensile stresses equal to $15 kN/c{m}^2$  and $9 kN/c{m}^2$ are observed on these respective faces. They are also

accompanied by shear stresses equal to 

• • 1

    $12 kN/c{m}^2$ tensile and $3 kN/c{m}^2$ tensile

  • 2

    $17 kN/c{m}^2$ tensile and $7 kN/c{m}^2$ tensile

  • 3

    $9.5 kN/c{m}^2$ compressive and $6.5 kN/c{m}^2$ compressive

  • 4

    $19 kN/c{m}^2$ tensile and $13 kN/c{m}^2$ tensile