How can I create a weighted pulley system that is heavier on the way down?

Click For Summary
SUMMARY

The discussion focuses on creating a weighted pulley system that experiences a weight of 5kg on the ascent and 8kg on the descent. The user seeks a mechanism that allows the weight to detach at the top and reattach at the bottom, effectively changing the weight during the two phases of movement. Suggestions include utilizing a pulley system, which is deemed a cost-effective solution, and referencing an overshot water wheel as a potential model for achieving the desired functionality.

PREREQUISITES
  • Understanding of basic physics principles related to pulleys and weights
  • Familiarity with mechanical systems and their components
  • Knowledge of attachment mechanisms for weights
  • Experience with project design and prototyping
NEXT STEPS
  • Research the mechanics of pulley systems and their configurations
  • Explore attachment mechanisms suitable for changing weights
  • Investigate the design and operation of overshot water wheels
  • Learn about load calculations and safety factors in mechanical systems
USEFUL FOR

Engineers, hobbyists, and students interested in mechanical design, particularly those working on projects involving pulleys and weight systems.

callumbrad128
Messages
10
Reaction score
0
This is going to seem a somewhat basic question to most people. However, I am trying to build a project where a weight on a pulley weighs 5kg on the way up but 8kg on the way down, then 5kg on the way up and 8kg on the way down, and so on... So its heavier on the way down. I was just wondering how a 'pulley system' would would to ensure this. Or if a pulley system would be the best/cheapest way. I really can't get my head round it. any help would be much appreciated.
 
Physics news on Phys.org
A weight us a physical object and is what it is. To change it you have to change it. Or perhaps I'm not understanding what you want to do.
 
ok basically i want a pully system which has a 5kg attatched to it on the way up. Then it reaches 'the top' and on the way down it weighs 8kg. So it somehow attaches to something at the top and once at the bottom, it detatches and weighs 5kg again and once at the top it attaches to something and weights more on the way down.. I was just thinking a pulley system would be cheapest but can't work out in my head how it would work. any suggestion would be much apppricated.
 
Well it would work fine as described. Still not seeing a problem.
 
Well, an overshot water wheel does about what you want.
 

Similar threads

Undergrad Translational force of a pulley
  • · Replies 27 ·
Replies
27
Views
2K
Graduate 1 pulley with mass, 1 mass on the cord, 1 external force, no gravity
  • · Replies 16 ·
Replies
16
Views
3K
High School How can I calculate the load on each line in a pulley system?
  • · Replies 9 ·
Replies
9
Views
6K
System of two pulleys and three masses
  • · Replies 22 ·
Replies
22
Views
6K
Force applied on the pulley of a system
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad How Does Hanging a Weight Affect the Sag and Tension in a Pulley System?
  • · Replies 5 ·
Replies
5
Views
3K
Problem with pulleys - two fixed and one movable
  • · Replies 22 ·
Replies
22
Views
1K
Undergrad What is the Weight Reduction with Each Added Pulley in a Pulley System?
  • · Replies 1 ·
Replies
1
Views
5K
Pulley system for cardboard pulp shredder/mixer
  • · Replies 7 ·
Replies
7
Views
3K
Undergrad Effect of friction on the tension in a pulley
  • · Replies 6 ·
Replies
6
Views
16K