Work is the total change in energy, or the amount of force applied over a distance. During the football throw, there is work being done by two different motion. The first motion that performs work is the cock back. During the time that he is cocking back the ball, he is applying a force of 2.6 N over a distance of 0.07m. During the throw he is applying 7.11N of force ove a distance of 9.5m. Therefore we can find the work being done using the equation involving force and displacement