© Dr. Steve Rapp
Power is the amount of work (W) done per
unit time (t), so
P = W/t
Since W = Fd and v = d/t we may write:
Fd/t or Fv.
Thus power can also be expressed as the
product of the applied force and the
velocity of the object.
The unit of power is the watt (w).
1 w = J/s = N m/s = kg m