A 200 mm reinforced concrete wall carries a dead load of 140 kN/m including self-weight and a live load of 60 kN/m. It is to be carried by 500 mm thick footing with its bottom 1.5 m below NGL. Soil bearing capacity is 180 kPa. fc'= 21 MPa, unit weight of concrete = 24 kN/m3, unit weight of soil = 18 kN/m3. Determine the nominal shearing stress the wall will induce to the footing. Concrete cover to bar centroid is 100 mm. 1.5 m P = 140 kN/m P = 60 kN/m B 500 mm