Work. Force and displacement

Work is a fundamental concept in physics that refers to the transfer of energy from one object to another by applying a force over a distance. Work is calculated by multiplying the magnitude of the applied force by the distance over which it is applied.

Mathematically, work (W) is defined as the scalar product of the force (F) applied and the displacement (d) made by the object in the direction of the force. Mathematically, work is calculated as W = F * d * cos(θ), where θ is the angle between the force and displacement vectors. Therefore, work is a scalar quantity and its unit of measurement in the International System is the joule (J). Depending on the value of the angle θ, mechanical work can be positive or negative.

The concept of work is fundamental in many areas of physics, such as kinematics, dynamics and energy. It provides an understanding of how the transfer of energy between objects takes place and how force can be used to perform tasks and change the velocity and position of objects. In addition, mechanical work is applied in many disciplines, from engineering and construction to biomechanics and applied physics in general.