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 must work, so as not to be a fool, to get on, to become a journalist, because that’s what I want!... I can’t imagine that I would have to lead the same sort of life as Mummy ... and all the women who do their work and are then forgotten. I must have something besides a husband and children, something that I can devote myself to!”
—Anne Frank (1929–1945)
“If work and leisure are soon to be subordinated to this one utopian principle—absolute busyness—then utopia and melancholy will come to coincide: an age without conflict will dawn, perpetually busy—and without consciousness.”
—Günther Grass (b. 1927)
“The traditional American husband and father had the responsibilities—and the privileges—of playing the role of primary provider. Sharing that role is not easy. To yield exclusive access to the role is to surrender some of the potential for fulfilling the hero fantasy—a fantasy that appeals to us all. The loss is far from trivial.”
—Faye J. Crosby (20th century)
“The tendencies of the times favor the idea of self-government, and leave the individual, for all code, to the rewards and penalties of his own constitution, which work with more energy than we believe, whilst we depend on artificial restraints.”
—Ralph Waldo Emerson (1803–1882)