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Pulleys - simple machines 06:08

Mechanical Advantage - Pulleys 12:28

Mechanical Advantage (part 3) 10:34

Simple Machines - What is a pulley | Lessons for kids 01:34

Pulleys are Cool 05:37

How a Pulley Works 01:08

Grade 4 - Pulleys and Gears Part 1 09:39

Physics Lesson: Pulley Systems Part 1 Dynamics for High School 04:44

How Pulleys Work 03:08

Rope and Pulley Systems-segment 1 - Pulley Basics & the Pulley Principle.pds.m2ts 05:09

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