The velocity of the water that comes out of the opening in the attached diagram can be found using Bernoulli equation, as v = sqrt (2gh) Once the water exits the hole, I am not sure how to answer questions like the following: Can I use conservation of energy and momentum. Also can I use the equations in kinematics (ie. S = ut + 1/2 a t^2, v=u+at,...) 1. Time for the water to hit the ground, 2. What is the value of H 3. What is the horizontal distance of flight of water 4. What is the acceleration ( acce. of gravity??) Thanks a lot. Gamma.