Mechanical engineering concepts

Block and tackle


A block and tackle is a lifting mechanism which consists of ropes, a pulley block, and a hook, as you can see here. They are often used on the end of cranes.

The arrangement of the rope and pulleys allows you to trade force for distance. 

Download this video (9.9 MB) or any of the videos for the 'Mechanical Engineering Concepts' lecture series 

Watch a YouTube playlist of all the videos for the 'Mechanical Engineering Concepts' lecture series

Download the slides for this video (812 KB), or the slides for any of the other videos on 'Mechanical Engineering Concepts'