energykinetic energy, Kgravitational potential energy, joule, Jmechanical energylaw of conservation of mechanical energyUgrestoring forceelasticequilibrium length, displacement from equilibrium, spring constant, kHooke’s lawDsL0elastic potential energy, perfectly elastic collisionenergy diagramstable equilibriumunstable equilibriumUsSUMMARYThe goals of Chapter 10 have been to introduce the ideas of kinetic and potential energy and to learn a newproblem-solving strategy based on conservation of energy.Law of Conservation of Mechanical EnergyIf there are no friction or other energy-loss processes (to beexplored more thoroughly in Chapter 11), then the mechanicalenergy of a system is conserved. Thus•Kis the sum of the kinetic energies of all particles.•Uis the sum of all potential energies.Kf1Uf5Ki1UiEmech5K1USolving Energy Conservation ProblemsMODELChoose a system without friction or other losses ofmechanical energy.
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This note was uploaded on 09/26/2010 for the course PHYS 021 taught by Professor Dick during the Spring '08 term at GWU.