Answer:
Your question is not complete. However, i have provided the missing part both the diagram and remaining data as stated in attached full.
Resultant vertical force component is 260005.2 Ibs
Resultant horizontal force component is 487500 Ibs
Explanation:
From P = Specific Weight * height
P = 62.4 * 25 = 1560Ib/ft^2
Then, W = P * Z
W = 1560 * 25 = 39000Ib/ft
Resultant forces
Let the base length be 10ft
A = 2/3 (a*b)
A = 2/3 (10* 25) = 166.67ft^2
Resolving vertical component
F vertical = Specific weight * Volume
F vertical = 62.4 (166.67 * 25)
F vertical = 260005.2 Ibs
Resolving horizontal component
F horizontal = 1/2 (W * height )
F horizontal = 1/2 ( 39000 *25)
F horizontal = 487500 Ibs
