An open tank L ft long as shown below travels to the right at a velocity vc fps. A jet of area Aj exhausts fluid of density r at a velocity vj fps relative to the car.
The tank car, at the same time, collects fluids from an overhead sprinkler which directs fluid downward with velocity vs.
Assuming that the sprinkler flow is uniform over the car area, Ac, determine the net force of the fluid on the tank car.
