This article explores the basic physics concept of a lever. This concept is then used to calculate mechanical advantage in roped systems. Levers Most people will be familiar with the concept of a lever, however it is useful to
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⇒UPDATED REPORT: See the new section below which discusses the Milwaukee m18 SuperHawg drill with the m18 9.0Ah high demand battery. Roping technicians are using winches increasingly for rescue and access tasks. There are significant advantages to