EM-106.02 |Equilibrium of Non-Concurrent Forces Apparatus

A large vertical force board is clamped into the working area in frame. The force board contains graduations around its perimeter for accurate position of cords. At the center of the force board is a fastening to hold the key components before experimental release. Single and double pulleys sets can be fixed round the perimeter of the frame to produce an infinite variety of multi-directional forces in a vertical plane. By using a single cord ring (concurrent forces), and the cords tensioned with Load hangers and weights to obtain equilibrium. An assembly for non-concurrent forces is supplied. The lines of action of the cords are transferred onto a sheet of paper (not supplied) clipped to the force board using the board clips provided. A set of weights and hangers are supplied.

Learning Objectives

• Equilibrium of a set of forces acting in a vertical plane
• Equilibrium of up to six concurrent forces
• Equilibrium of up to six non-concurrent forces
• Experimental verification of the three conditions of equilibrium, i.e. ? Fx = 0; ? Fy = 0; ? Mx = 0 (where F = forces and M = moments)
• Graphical solution of a triangle of forces (three forces) or closed polygon for more than three forces Link polygon
• Construction of polygon of forces