# Leather Belt + Baggy Jeans

1. Apr 17, 2017

### Fizzic

1. The problem statement, all variables and given/known data
Your leather belt holds up your baggy jeans. How? What happens when you change variables such as making the belt wider, more narrow, thicker, or adding elastic?

2. Relevant equations
N/A

3. The attempt at a solution
Reducing diameter of the belt by tightening inreases friction?

2. Apr 17, 2017

### Staff: Mentor

Hi Fizzic,

Welcome to Physics Forums.

Okay. Can you explain why friction matters in this problem? Supposing that it does matter, what else can affect the friction? What about the "variables" mentioned in the problem statement?

3. Apr 17, 2017

### Fizzic

Friction keeps things from moving apart? Smaller area of narrow belt would mean less friction.
Trying to compare to action of hose clamp.

Last edited: Apr 17, 2017
4. Apr 17, 2017

### Staff: Mentor

Is that true? Sounds more like what glue or an adhesive does. Perhaps you meant that friction opposes the sliding motion of one surface over another?
You should check the various formulas that apply to friction (refer to your text or course notes). How is friction related to force, pressure, and contact area?
That sounds like a good idea.