An anchored sheet-pile bulkhead is shown in Figure P14.10. Let L1 5 2 m, L2 5 6 m, l1 5 1 m, g 5 16 kN/m3 , gsat 5 18.86 kN/m3 , f9 5 328, and c 5 27 kN/m2 . a. Determine the theoretical depth of embedment, D. b. Calculate the anchor force per unit length of the sheet-pile wall. Use the free earth support method