In a reduction curve $(350mm$ at the entrance to $200mm$ at the exit$),$ arranged in the vertical plane, the flow rate is $0\mathrm{.}28\frac{m^3}{s}$ of water. The pressure at the entrance is $7mH2O,$ being a curve of small length, the same quota is considered for points $(1)$ and $(2),$ between which there is no significant load loss. The internal volume of the curve is $0\mathrm{.}084m^3,$ obtain: the reaction forces that act on the curve when the weight of the curve is $60Kgf.$ Answer $Fx=4\mathrm{.}05kN$ and $Fy=10\mathrm{.}0kN.$