Mechanical advantage device - Wikipedia
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Skill Sheet TR 5.1.2 Rescue Technician CORE Instructor Reference Materials Mechanical Advantage Systems_________________________
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TERT - Technical Emergency Rescue Team - Introduction to Mechanical Advantage System #TERT #MA #PULLEY #AthenaProject | Facebook
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What is the mechanical advantage of a pulley that has 3 supporting ropes? And how hard would I have to pull to raise a 60 N load? - Quora
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Rope Rescue 3:1 System
