Examples of linear systems of equations

In this lesson we describe two examples of applications. The first is a mechanical system consisting of a set of four masses connected by ropes and with two inlcined planes. The aceleration of the system and the tensions on the ropes are determined. The second example is an electric circuit that contains batteries and resistances. The circulating intensities in all holes or subcircuits are determined and the compatibility of the resulting systems of equations are analyzed.