Pulley efficiency seems initially like a simple thing to measure, however it presents an excellent opportunity to consider various aspects of experiment design. Experiment design At face value it would

Synthetic kernmantle rope has traditionally been characterised as either Dynamic or Static.  These general terms have probably been derived from their intended use, specifically that activities with planned dynamic events

Trigonometry Triangles appear everywhere in rope based systems and, while there are many ‘rules-of-thumb’ to help us understand and resolve forces, sometimes it is important to be more precise and