Water is flowing through a $12-$cm$-$diameter pipe that consists of a $3-$m$-$long vertical and $2-$m$-$long horizontal section with a $90$ elbow at the exit to force the water to be discharged downward, as shown in Fig. P$6-47,$ in the vertical direction. Water discharges to atmospheric air at a velocity of $4\frac{m}{s},$ and the mass of the pipe section when filled with water is $15$ kg per meter length. Determine the moment acting at the intersection of the vertical and horizontal sections of the pipe $($point A$).$ What would your answer be if the flow were discharged upward instead of downward?Show all work