(Product number: HST23
A large vertical force board is clamped into the working area of either the HST1 or HST100 frame. The force board contains graduations around its perimeter for accurate position of cords. At the centre 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 HST1 or HST100 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. 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.
Two options are available that expand the experiments available, and which use the standard supplied items from the HST23.