Question: The height of the given vessel is h,and the width of the given vessel is b (as given in the diagram). The density of the liquid is r.Find the force exerted by the liquid on the slant wall. Relevant formulae : P = F/A F = Vdg An attempt at the solution : I had tried taking a differential slice of the liquid and then integrating. But I am having trouble handling the alpha part. Where does the angle alpha fit into this question?