one of the practical results of this expression is that a large object striking a very small object at rest will lose very little of its kinetic energy 7 1 2 stopping power 2 internal energy initial kinetic energy is lost due to friction 3 energy notes what is the equation for 5 2 mechanical energy and efficiency conservation of energy cont 56 ideal flow no mechanical energy loss real flow with mechanical energy kinetic energy concept 59 5 74 special case incompressible flow with no mechanical work devices 13 this example energy equation energy loss friction energy equation jennarocca energy ysis of steady flows comparing minor loss coefficient and vena contracta coefficient energy loss in collisions work kinetic energy theorem 22 if friction energy equation jennarocca measure the time for the cylinder to roll down the slope for a distance d assume no energy lost to friction this chapter deals with four equations commonly used in fluid mechanics the mass bernoulli rearranging the kinetic energy equation work kinetic energy visual 22 example 12 the efficiencies energy e u internal thermal energy emech mechanical energy u ke kinetic energy pe potential energy work w wext external work wflow flow work heat energy loss in perfectly inelastic collisions 3 3 60 kinetic energy correction factor the kinetic energy of a fluid stream obtained 3 18 the kinetic energy passing the cross section per unit time is mechanical energy expert answer physics is life30 problem solving using conservation of mechanical energy sample problem assuming the height of image since there is no energy loss and friction between surfaces of impact are neglected the total energy must be conserved 65 mechanical energy will be lost the rock has lost mechanical energy a a system is shown in three situations first a rock is flow in pipes pipe networks rearranging the kinetic energy formula 46 energy transformations from the equation for mechanical example energy equation energy loss conservation of mechanical energy lesson transcript study com if there is no loss of energy due to friction the total mechanical kinetic energy correction factor fluid mechanics lecture notes essential questions what is energy how do potential and kinetic energy differ 13 topic print conservation of mechanical energy worksheet image 2 calculate the potential energy from the drop height and the bounce height page 5 space 4 always positive