Why would you use a single fixed pulley to lift a box if the mechanical advantage of the pulley is 1?

1 Answer
Gió
Oct 5, 2015

Well, I am not sure if it is what you want...basically, the person can take advantage of his weight to help in lifting the load.

Explanation:

The pulley and rope together can be used to "change direction" of forces. In this case to lift, say, a box of books with your arms can be a little bit difficult. Using a rope and a pulley you can hang from one end using your weight to do the job for you! so basically your Weight (force #W_1#) is changed by Tension (force #T#) in the rope to lift the Weight #W_2# of the box!!!!

enter image source here

Related questions
See all questions in Simple Machines
Impact of this question
7013 views around the world
You can reuse this answer
Creative Commons License