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183_notes:grav_and_spring_pe [2014/10/10 16:04] – [Conservative Forces] caballero | 183_notes:grav_and_spring_pe [2014/10/14 13:20] – [Examples] caballero | ||
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===== Types of Potential Energy ===== | ===== Types of Potential Energy ===== | ||
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==== (Near Earth) Gravitational Potential Energy ==== | ==== (Near Earth) Gravitational Potential Energy ==== | ||
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==== Conservative Forces ==== | ==== Conservative Forces ==== | ||
- | Both of the examples above (local gravitational force and spring force) are examples of conservative forces. Conservative forces are those for which we can associate a potential energy. The energy associated with conservative forces does not depend on the path of the objects only their separation. That is, for conservative forces only the initial and final locations of the objects matter not the path they took to get there. | + | Both of the examples above (local gravitational force and spring force) are examples of [[http:// |
- | <wrap todo>Add a bit about friction and the path dependence.</ | + | Dissipative forces such as friction and air drag are non-conservative forces. The path that an object takes matters very much when non-conservative forces are present. Moreover, these dissipative forces cannot be associated with any construct like potential energy. |
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+ | ==== Examples ==== | ||
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+ | [[183_notes: |