BREAKING STRING WITH HINGE

Demo Number	170
Location	Shelf 19
Description	A hinged board gives enough mechanical advantage to break a string tied between two blocks.
Related Demos
Tips	When the ends of the hinged pieces of wood are placed in the notches of the two wooden blocks and the hinged block is loaded, the rope, fastened to two heavy screw eyes, may be broken by the application of a much smaller force than would be required in the case of a direct pull. The extra piece of wood can be used between the hand of the presenter and the hinge to avoid pinching. Use the white string.

Colorado State University