1. The problem statement, all variables and given/known data Calculate the work done if a 25N force acting in a direction of vector (2,3,-1) moves an object from P(2,-3,1) to Q(5,0,2). 2. Relevant equations Work = Force (dot) Displacement 3. The attempt at a solution Well force is 25N. But as for displacement, do I just find the displacement of the points P and Q, but then whats the direction vector (2,3,-1) for? I'm just a bit confused on this.