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Lecture05 - Chapter 8 Potential energy and conservation of...

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Chapter 8 Potential energy and conservation of energy 1 PHYS 2101, P.M.Shikhaliev LSU, Fall 2010
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8.1. Potential energy Potential 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 Energy 3. Electrostatic Potential Energy 2 PHYS 2101, P.M.Shikhaliev LSU, Fall 2010
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8.2. Work and potential energy Kinetic energy (Chapter 7): Work is positive kinetic energy increases Work is negative kinetic energy decreases Potential energy (Chapter 8): Since U + K = const. then Work is positive potential energy decreases Work is negative potential energy increases D U = W 3 PHYS 2101, P.M.Shikhaliev LSU, Fall 2010
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