1. The problem statement, all variables and given/known data A man has a garden on the roof of his building. He has a patio and a small lawn. He wants to water the lawn. He has a sprinkler in the form of a disk with 40 holes of diameter 1 mm. A line drawn tangent to the sprinkler at the location of the outer most holes would make an angle of 15 degrees with the horizontal. He places the sprinkler at the center of the lawn with a distance of 2 m from the sprinkler to the edge of the lawn and connects it via a hose to a faucet placed on a wall 70 cm above the roof level. The man does not want the water to extend farther than the edge of the lawn. What should be the speed of the water out of the 1.9 cm diameter faucet for the water to reach no farther than the edge of the lawn? What will be the pressure at the faucet opening? 2. Relevant equations Bernoulli's Principle: 3. The attempt at a solution In all honesty, I'm not even sure where to begin with this problem. The density of the water is 1000 kg/m^3 and gravity is 9.8 m/s^2. When we plugged in our given data to Bernoulli's Principle, our answer was 6860 Pa. However, I'm not entirely sure that answer is even helpful to our problem. Any advice on where to even start going would be great.