power = work divided by time
Power is the rate at which work is done. When an amount of work is done in a time interval from time 0 to time t, the average power during that time interval is given by the formula at the top of this page. If the work is done at a constant rate (also referred to as a steady rate) then the power is a constant and the value calculated by means of this formula is the power appropriate to every instant during the time interval.
|Calculus-Related Note: Power is the
derivative of work with respect to time: