(Solved): 8. A trough with a trapezoidal cross-section, as shown in the figure, contains vegetable oil with ...

8. A trough with a trapezoidal cross-section, as shown in the figure, contains vegetable oil with density \( \rho=925 \mathrm{~kg} / \mathrm{m}^{3} \), and let \( g=9.8 \mathrm{~m} / \mathrm{s}^{2} \). Find the hydrostatic force on one end of the trough if it is completely full of oil.