![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
If a constant force F is applied to an object, and the resulting movement of the object is represented by the displacement vector d, then the work performed by the force is Work = F . d.
\![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
The vectors are ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6252cd1a1386c085cf073629b4117e88.png\")
and ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=787f1b79aa277e37fb3b5f92b2d21d44.png\")
.
Work = F . d.
\ ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5a9736683a4f0204dc20bfb973504114.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=35052c7e733e805cb4d12df93b455a31.png\")
= 3330 ft-lb.
\![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The work is 3330 ft-lb.