8.1. Potential energyPotential energy is energy that can be associated with a system of objects that apply forces on one another.Some forms of potential energy: 1.Gravitational Potential Energy, 2.Elastic Potential Energy3.Electrostatic Potential Energy2PHYS 2101, P.M.Shikhaliev LSU, Fall 2010
8.2. Work and potential energyKinetic energy (Chapter 7):Work is positive –kinetic energy increasesWork is negative –kinetic energy decreasesPotential energy (Chapter 8):Since U + K = const. thenWork is positive –potential energy decreasesWork is negative –potential energy increasesDU = –W3PHYS 2101, P.M.Shikhaliev LSU, Fall 2010
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