In the attached photo A, L, D and Phi are constants. There is a torque and a force applied to this box, or whatever it is. In front of the box is what I imagine the motion caused by the force and the torque will make the box go in.
I have a system of forces which I have reduced to a force-couple system. I am trying to predict the motion of the force and couple. This is hard because the force changes direction as the moment turns the particle. I imagine this should be turned into some sort of tangential-normal components...