Ek 1 2mv m is the mass v is the velocity work power energy exams and solutions. The general formula for work and for determining the amount of work that is done on an object is.
We can calculate work by multiplying the force by the movement of the object.
Work energy formula physics. The amount of work a force does is directly proportional to how far that force moves an object. What is work energy and power. X k is the spring constant and x is the amount of compression or streching kinetic energy.
The work w done by the net force on a particle equals the change in the particle s kinetic energy ke. In physics work is the energy transferred to or from an object via the application of force along a displacement. The work energy principles discussed here are identical to.
These formulas show that work is the energy associated with the action of a force so work subsequently possesses the physical dimensions and units of energy. In physics we can define energy as the capacity to do. Latex text w delta text ke frac 1 2 text mv text f 2 frac 1 2 text mv text i 2 latex where v i and v f are the speeds of the particle before and after the application of force and m is the particle s mass.
For the sake of simplicity we will consider the. In physics we say that a force does work if the application of the force displaces an object in the direction of the force in other words work is equivalent to the application of a force over a distance. W f d.
Work is said to be done when a force applied to an object moves that object. H m is the mass g is the gravitational acceleration and h is the distance potential energy of the spring. The si unit of work is the joule j energy.
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