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:
“I pray every single second of my life; not on my knees, but with my work. My prayer is to lift woman to equality with man. Work and worship are one with me. I can not imagine a God of the universe made happy by my getting down on my knees and calling him “great.””
—Susan B. Anthony (1820–1906)
“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.”
—Hortense Odlum (1892–?)
“Democracy is timelessly human, and timelessness always implies a certain amount of potential youthfulness.”
—Thomas Mann (1875–1955)
“The chief function of the city is to convert power into form, energy into culture, dead matter into the living symbols of art, biological reproduction into social creativity.”
—Lewis Mumford (1895–1990)