Work Energy And Power Formulas

For formulas see work done by a constant force parallel to displacement and work done by any constant force and work done by a position dependent force.

Work energy and power formulas.

Also units of energy. 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. Work and energy in physics share a close relationship. It is the work time ratio.

The work energy principles discussed here are identical to electric work energy principles. As is implied by the equation for power a unit of power is equivalent to a unit of work divided by a unit of time. In older works power is sometimes called activity. The three main equations representing the relationships between energy work and force.

Andersen defines the terms energy work and power. Power is a scalar quantity. Power work time or p w t. Joule the units of work equivalent to a newton meter.

The kinetic energy of an object can be related to its mass and velocity with the formula this formula for kinetic energy can be found from the equation for work if the force is in the same direction as the object s displacement. Work a force applied over a distance. Work energy and power. Ek 1 2mv m is the mass v is the velocity work power energy exams and solutions.

In physics power is the amount of energy transferred or converted per unit time. See definition of total mechanical energy. He also uses a simple example to calculate both work and power. The standard metric unit of power is the watt.

Intro music atribution title. In this article we will learn all about the concept of work power and energy. Power is the rate at which work is done. Mathematically it is computed using the following equation.

The unit of kinetic energy is the same as the unit of work the joule j. The output power of a motor is the product of the torque that the motor generates and the angular velocity of its output shaft. This formula depends on the kinematic. H m is the mass g is the gravitational acceleration and h is the distance potential energy of the spring.

According to the work energy principle an increase in a rigid body s kinetic energy is caused by an equal amount of work done on that body by a force applied to that body. X k is the spring constant and x is the amount of compression or streching kinetic energy. Work formula example of work types of energy power formula questions. Power work done per unit time.

Power is defined as work done per unit time.