A house painter is standing on a uniform, horizontal platform that is held in equilibrium by two cables attached to supports on the roof of the building (see the figure below). The painter has a mass of 73.1 kg and the mass of the platform is 18.6 kg. The distance from the left end of the platform to where the painter is standing is d= 2.45 m and the total length of the platform is 4.55 m.

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Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.