A mild steel bar of square cross-section has a sectional area 200 mm2. It is subjected to an axial force of 20 kN as shown in the figure. The intensity of the normal tensile stress is N/mm2 on the oblique plane 1-1 at 45° with Y-Y axis which is normal to the longitudinal axis will be:
1
25
2
50
3
75
4
100