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## Main Question or Discussion Point

My model is similar to a piston: a rod is connected to a steel cylindrical mass within a pvc pipe. The other end of the mass is connected to a spring which is fixed at its other end. One pulls on the rod to create tension and a displacement of a few centimeters while their arm is connected to a device that measures voltage potentials. I then have to model the system in C++ and do the same voltage potential test with a haptic device to determine if the system is a good simulation.

My problem arises in that it has been a considerable amount of time since I have taken dynamics. I realize this is a relatively simple problem, but I have not used it since. Can anyone assist me with the characteristic equations for this system?

I need to be reminded how to model friction, intertia, displacement, etc. Pulling forces do not exceed 5 N. Probably shouldn't have sold that dynamics book after all :-/

My problem arises in that it has been a considerable amount of time since I have taken dynamics. I realize this is a relatively simple problem, but I have not used it since. Can anyone assist me with the characteristic equations for this system?

I need to be reminded how to model friction, intertia, displacement, etc. Pulling forces do not exceed 5 N. Probably shouldn't have sold that dynamics book after all :-/