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The work W done by a constant force of magnitude F on a point that moves a displacement s in a straight line in the direction of the force is the product = For example, if a force of 10 newtons ( F = 10 N ) acts along a point that travels 2 metres ( s = 2 m ), then W = Fs = (10 N) (2 m) = 20 J .
Since the velocity of the object is the derivative of the position graph, the area under the line in the velocity vs. time graph is the displacement of the object. (Velocity is on the y-axis and time on the x-axis. Multiplying the velocity by the time, the time cancels out, and only displacement remains.)
The solution r(t) to the equation of motion, with specified initial values, describes the system for all times t after t = 0. Other dynamical variables like the momentum p of the object, or quantities derived from r and p like angular momentum , can be used in place of r as the quantity to solve for from some equation of motion, although the ...
In mechanics, a displacement field is the assignment of displacement vectors for all points in a region or body that are displaced from one state to another. [ 1 ] [ 2 ] A displacement vector specifies the position of a point or a particle in reference to an origin or to a previous position.
Workforce Modeling is the process by which the need for skilled workers at a particular point in time is matched directly with the availability and preference of skilled workers . The resulting mathematical models may be used to perform sensitivity analysis and generate data output in the form of reports and schedules.
The work of a force on a particle along a virtual displacement is known as the virtual work. Historically, virtual work and the associated calculus of variations were formulated to analyze systems of rigid bodies, [ 1 ] but they have also been developed for the study of the mechanics of deformable bodies.
Time displacement in sociology refers to the idea that new forms of activities may replace older ones. New activities that cause time displacement are usually technology-based, most common are the information and communication technologies such as Internet and television .
The lowest word count in a published weekday-size 15x15 puzzle is the June 29, 2013 The New York Times crossword by Joe Krozel, with just 50 words. [58] The fewest shaded squares in a 15x15 American crossword is 17 (leaving 208 white spaces), set by the July 27, 2012 Times crossword by Joe Krozel. [59]