Find the work W done by a force F = (40i - 15j) Ib in moving an object in a straight line given by the displacement vector
D = (40i + 20j) ft.
![Find the work W done by a force F 40i 15j Ib in moving an object in a straight line given by the displacement vector D 40i 20j ft class=](https://us-static.z-dn.net/files/da4/d1dabbd687ab7431eb905fb6ef12628c.png)