For example, if a force of 10 newtons ( {\displaystyle F} F = 10 N) acts along a point that travels 2 meters ( {\displaystyle s} s = 2 m) , then it does the work {\displaystyle W} W = (10 N)(2 m) = 20 N m = 20 J. This is approximately the work done lifting a 1 kg weight from ground level to over a person's head against the force of gravity. Notice that the work is doubled either by lifting twice the weight the same distance or by lifting the same weight twice the distance.
