Vermogen verbruikt door een constante kracht

Power is the rate at which work is done. The formula for power can be rearranged to obtain the work done if the power output during a process is known.

If the output power is changing as a function of time, the work done is the integral of the power during that time period and hence the area under the curve gives the value of work done.

When a constant force is applied on an object, the power of the object can be expressed in terms of the force acting on it and the displacement covered by the object. Here, the derivative of displacement with time is velocity. Thus, power can also be represented as the product of force and velocity.

From the equation, power can be positive, negative, or zero depending on the angle between the force and the velocity vector.