Pulleys, Pulleys, and More Pulleys

[NekotoKoara]

Ok so I will attach an image of two pulley systems. The one on the right is straight forward. Both forces are vertical so the force pulling down on the pulley is easy to figure out. The one on the left makes me a bit more confused. For the one on the left I was wondering if the combined vertical and horizontal forces would place a force in the diagonal direction (at a 45 degree angle?) on both pulleys towards the center of the system? If so how exactly would I figure out how this plays into the pulleys' safe working loads? Thanks for any guidance you can provide. :-)

 

[NekotoKoara]

Here's the photo.

 

[A.T.]

if the combined vertical and horizontal forces would place a force in the diagonal direction (at a 45 degree angle?)

Yes, which would move them to the center, if they are hanging on ropes from the ceiling.

If so how exactly would I figure out how this plays into the pulleys' safe working loads?

Forces are vectors:
https://en.wikipedia.org/wiki/Euclidean_vector#Addition_and_subtraction

 

[NekotoKoara]

Yes, which would move them to the center, if they are hanging on ropes from the ceiling.

Cool. Now what if they are inside a metal casing that is bolted to the ceiling? Would I just ignore the horizontal and vertical forces and just use their combined diagonal force when it comes to the pulleys' safe working load?

 

[A.T.]

Cool. Now what if they are inside a metal casing that is bolted to the ceiling? Would I just ignore the horizontal and vertical forces and just use their combined diagonal force when it comes to the pulleys' safe working load?

For the pulleys, yes.

But for the metal casing that is bolted to the ceiling, it does matter which direction you pull, not just the magnitude of the total force.

 

[NekotoKoara]

For the pulleys, yes.

But for the metal casing that is bolted to the ceiling, it does matter which direction you pull, not just the magnitude of the total force.

Thanks for your guidance. I have a friend who is building a pulley system that is using pulleys in the configuration of the left system I posted. Would you happen to know of any online resource that I could read that address the potential issues that could arise with the metal casing?

 

[A.T.]

Would you happen to know of any online resource that I could read that address the potential issues that could arise with the metal casing?

Potential issue is that the metal casing or it's attachment from the ceiling breaks.

 

[NekotoKoara]

Potential issue is that the metal casing or it's attachment from the ceiling breaks.

That I am aware of lol. Sorry for not being clear. What I meant was do you have resources in mind that discuss the physics of breaking points of materials that I could read so I can become more familiar with to how to address these types of issues? I am not a physics student so I am teaching myself all of this stuff and at times have a hard time finding online resources to help me understand certain concepts. Any suggestions you have would be very appreciated :-)

 

[A.T.]

That I am aware of lol. Sorry for not being clear. What I meant was do you have resources in mind that discuss the physics of breaking points of materials that I could read so I can become more familiar with to how to address these types of issues?

https://en.wikipedia.org/wiki/Structural_analysis

 

[NekotoKoara]

https://en.wikipedia.org/wiki/Structural_analysis

Thank you! This is perfect. I often know conceptually what I am looking for but don't have the word for it. I really appreciate your help. :-)