4.2 Work

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Work

Work is defined as the process of transferring energy to or from an object by applying a force over a distance. When a force moves an object in the direction of that force, work is done on the object, and energy is transferred to it. Only the component of force exerted parallel to the direction of displacement will do work. Work can be positive, negative, or 0 depending on the angle of the force. Work is a scalar, measured in Joules (J), and represented with the variable

{W}

W=Fdcos \theta

${W}$ represents the work done by the force
${F}$ is the force
${d}$ is the displacement of an object when the force was exerted
${\theta}$ is the angle between the direction of displacement and the direction of force

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