In combination with the universal testing frame SE 111, the states of equilibrium and reaction forces in a ladder are investigated with this experimental set. The ladder consists of two parallel rods that are supported on the universal testing frame. The reaction forces are simulated in the appropriate direction using cords. Suspended weights represent the forces. A weight can be positioned on the ladder; the position of this weight can be precisely defined using a ruler with a millimeter scale.
Due to its robustness and size, the experimental set can be used both for student experiments and for demonstrations in large lecture theatres.

- Equilibrium of a ladder
  + as a function of position and size of load
  + as a function of the angle of inclination