Water exits a $6-$in$.-$diameter pipe connected to a fire hydrant. The pipe invert $($bottom of the pipe$)$ is $14$ inches above the level ground. The water contacts the ground in a circular pattern with the closest distances identified as variable $l\text{'}$ and the furthest distance identified as variable $l.$

Determine the velocity $($in fps$)$ the water exits the fire hydrant. Assume that the velocity over the hydrant exit is uniform and $l\text{'}=70ft.$ Hint: apply Bernoulli's along one streamline.