(Solved): The hydraulic dredge shown in the figure below is used to dredge sand from a river bottom. Estimate ...

The hydraulic dredge shown in the figure below is used to dredge sand from a river bottom. Estimate the thrust needed from the propeller to hold the boat stationary. Assume the specific gravity of the sand/water mixture is

. :Please explain clearly and detailed. Also show correct control volume and correct coordinat system, .thanks