For the data given in this problem, determine the magnitude of the active thrust on the wall retaining a c' ' soil, using the

For the data given in this problem, determine the magnitude of the active thrust on the wall retaining a c' – ϕ' soil, using the procedure discussed in Section 16.10. Given H = 5 m, c' = 5 kN/m², ϕ' = 26°, γ = 18 kN/m³, k_v = 0, and k_h = 0.3.