A force board is clamped into the working area of Universal Frame and Stand single and double pulleys sets can be fixed round the perimeter of the to produce an infinite variety of multi-directional forces in a vertical plane. Two cord rings held together by a short cord are used for non-concurrent force experiments. The lines of action of the cords are transferred onto a sheet of paper clipped to the force board using the board clips provided. By using a single cord ring (concurrent forces), up to six cords can be attached and the cords tensioned with load hangers and weights to obtain Equilibrium of Forces. The set of weights for the experiment is included.
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