Equilibrium of Forces

Description of Equilibrium of Forces

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. 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 lines of action of the cords are transferred onto a sheet of paper clipped to the force board using the board clips provided. Two cord rings held together by a short cord are used for non-concurrent force experiments. The set of weights for the experiment is included.

Experimental Capabilities of Equilibrium of Forces

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

Specification of Equilibrium of Forces

1. The forces produced by cords tensioned by weights on hangers
2. To use pulleys on the perimeter of the Universal Frame and Stand to turn the cords vertically downward
3. The lines of force to be transferred onto paper sheet clipped to the force board
4. Single and double cord rings offer the alternatives of concurrent and non-concurrent forces
5. Comprehensive technical manual for student and lecturer and text book provided
6. Calibrated weights set and hangers supplied
7. Must be used with universal Frame and Stand
8. Comprehensive instruction manual provided