Refer to Figure 15.52. Using Michalowski's solution given in Figure 15.25 ((' > 0), determine the critical

Question:

Refer to Figure 15.52. Using Michalowski's solution given in Figure 15.25 ((' > 0), determine the critical height of the slope for the following conditions.
a. n' = 2, (' = 12o, c' = 36 kN/m2, and ( = 18.5 kN/m3
b. n' = 1, (' = 18o, c' = 30 kN/m2, and ( = 17 kN/m3