Force on surface with quantification

AI Thread Summary
The discussion centers on calculating the force exerted on a black surface by a number of undeformable red balls under pressure. Participants explore whether the black volume would move if placed on a frictionless surface, concluding that it would not. The conversation shifts to the implications of gas atoms and temperature on the movement of the black volume, questioning if a force exists when the arrangement of atoms differs on either side. The participants express confusion over the interaction of forces in this scenario, particularly in relation to statistical contact points. Ultimately, the inquiry seeks a method for quantifying the force under these conditions.
Gh778
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I would like to calculate the force on the black surface (cut view) where the black volume (undeformable) is put on pressure with a lot of red ball undeformable. The pressure is give for example with a weight. Like in the slope we can put 5 balls and only 1.5 balls in vertical side I think the pressure give a force to the right. Is there a method for calculate the force ?
 

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Hi Gh778! :smile:

I assume the balls are all stationary?

Hint: if the block was on a frictionless surface, would it move? :wink:
 
I would like to know if there is a force.

would it move?
Like that, even frictionless, no
 
Gh778 said:
… even frictionless, no

so which direction are the forces on it? :wink:
 
Change red balls for atoms (atoms of gas for example). Even a surface like I draw it's not possible to build. The temperature move atoms everywhere and like that the black volume can move (it's not block by mechanic balls). The vertical line can only put 1.5 contact (even it's statistical), this compensate the other force ? The quantification don't interact here ?
 
Last edited:
sorry, I'm not following you :confused:

anyway, if the block doesn't move, what is the net force on it?
 
with mechanicals balls the black volume is blocking, it can't move even a force exist. With gas and temperature, the volume can move (can, I don't say it move). Is a force exist when the slope can accept 5 atoms and other side 1.5 atoms ? I would like to calculate this force but maybe someone has already do that ?
 

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