This paper shows the mathematical modeling process of a mechanical system of masses coupled by two springs and a shock absorber.The process of capture of movement of the mass system coupled with springs was done with software Tracker video analysis and modeling tool.The motion capture of the coupled masses A and B was made with a duration of 20 seconds.A comparison of the results of the movement of the two masses will be established as a first instance,by adjusting trajectories of curves in time using Matlab software and as a second instance a numerical solution of the Mass-Spring model will be established using the Runge Kutta method of 4 order.With this last method,it is expected to achieve a better precision modeling of the initial value problem.Finally,a comparison of the two mathematical models will be made analyzing.
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