(b) If there is complete conversion of gravitational potential energy to kinetic energy, what is the speed of the water at the bottom of the fall?
(Note: This is actually an unrealistic assumption;
some of the energy in the fall will be converted into heat)
If all potential energy is converted to kinetic
(A) (EK + EP)top = (EP)bottom
(B) (EK + EP)top = (EK)bottom
(C) (EK + EP)top = (EK + EP)bottom