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This model demonstrates how to measure the weight of an object when standard weights are unavailable. The setup requires a rope (or cable) stretched between two stands of equal height, along with an additional object of known weight. Both objects are then attached to the rope, ensuring that the section of rope between the attachment points remains horizontal. In this two-dimensional scenario, involving both horizontal and vertical forces, the system's equilibrium is determined by three key equations. The sum of horizontal forces (ΣH = 0) and the sum of vertical forces (ΣV = 0) must both equal zero. The sum of torques (Στ = 0) must also equal zero. These three equations are necessary to solve statically determinate equilibrium problems in two dimensions.
