A water collector on a farm roof 5m high from the ground overflows with rain through a large circular are of radius 1.2m. The water then falls through a pipe and into a tub near the ground; it exits the pipe through a .3m radius spout located .5m from the ground. The speed out of the spout was measured to be 8.5m/s. Calculate the speed of the water coming from the roof. Caluclate the pressure in the collector on the roof.