1. The problem statement, all variables and given/known data Find the work done by force F from (0,0,0) to (1,1,1). F=3yi+2xj+4zk The path C_3 U C_4 consisting of the line segment from (0,0,0) to (1,1,0) followed by the segment (1,1,0) to (1,1,1) 2. Relevant equations None 3. The attempt at a solution I am trying to find r(t) for both line segments. For r(t)_1 I tried (1-0)i+(1-0)k+(0-0)j. I got that from x_2-x_1, etc. This worked out for the first r(t) netting me ti+tj I then tried this for the second line segment and ended with tk only. The correct r(t) is i+j+tk So clearly I am solving the r(t) part incorrectly. The book doesn't go over how to get the r(t) - that is where I need the help. I am thinking it might have something to do with the original (0,0,0) to (1,1,1) but I'm not sure. How does one obtain both r(t)'s when only points are given?