A trough with a trapezoidal cross-section, as shown in the figure, contains vegetable oil with density 935 kg/m. (Use g = 9.8 m/s for the acceleration due to gravity.) - 2 m + 3 m - +1 5 m C 1 m (a) Find the hydrostatic force (in N) on one end of the trough if it is completely full of oil. (b) Compute the force (in N) on one end if the trough is filled to a depth of 1.5 m. (Round your answer to two decimal places.) Z