$3\mathrm{.}2$ The image below shows PVC pipes, mostly for conveying water for general use. If one end of the pipe is $1\mathrm{.}4m$ and the other is $1\mathrm{.}2m$ respectively, determine how much water would be discharged through the bigger section of the pipe if flowing full with a velocity of $2\mathrm{.}5\frac{m}{s}.$ Calculate also, the flow velocity at theother end. Draw a freehand diagram and show all your calculations.