Work and Potential Energy
The scalar product of a force F and the velocity v of its point of application defines the power input to a system at an instant of time. Integration of this power over the trajectory of the point of application, C=x(t), defines the work input to the system by the force.
Read more about this topic: Work (physics)
Famous quotes containing the words work and, work, potential and/or energy:
“Most women without children spend much more time than men on housework; with children, they devote more time to both housework and child care. Just as there is a wage gap between men and women in the workplace, there is a “leisure gap” between them at home. Most women work one shift at the office or factory and a “second shift” at home.”
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“Not rarely, and this is especially true of wives and mothers, the motive behind assuming a disproportionate share of work and responsibility is completely unselfish. We want to protect, to spare those of whom we are fond. We forget that, regardless of the motive, the results of such action are almost always destructive and unproductive.”
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—F. Gonzalez-Crussi, Mexican professor of pathology, author. “Reflections on Child Abuse,” Notes of an Anatomist (1985)
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