6.Let's say that the corner of the area described in problem 4 above is aligned with the point of problem 3 above. Draw the area as an unembedded footing that

rests on the profile and denote the point in the drawing. Keep the profile dry. Now, calculate the net vertical stress at the point after the footing is loaded (assume that the footing has no weight). The answer is simply o'vo+ Aoz, i.e., the sum of the terms that you calculated in problem 3 and problem 4, respectively. Make sure that you understand this.