How is Torque Shared in Equilibrium?

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Torque in equilibrium involves both forces and torques summing to zero for static balance. When a torque is applied on one side of a seesaw, it must be countered by forces at different distances on the other side. In cases with multiple unknown forces, the system can become statically indeterminate, requiring additional equations that account for material properties like stress and strain. This complexity can complicate the analysis, but it is essential for finding a solution. Understanding these principles is crucial for analyzing systems in equilibrium.
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Hey there, I'm trying to figure out how torque operates in combination and I can't find anything relating to this in any textbooks or online.

So if you a mass held by two strings in equilibrium, the force of gravity is split evenly between them right?
What happens if you have torque instead of a linear force?

A common example I have seen when looking around is that if you have three masses at known distances on a see-saw in equilibrium and you know two of the masses you can solve for the third.
But now what happens if you have a system in equilibrium where you apply a torque on one side of the see saw which is opposed by two forces at different distances on the other?

I came up with a concrete example in the figure below so it is more clear.

Are the forces equal or are the torques equal? Or perhaps neither?

proxy.php?image=http%3A%2F%2Fi.imgur.com%2FvLvKC60.png
 
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For an object to be in static equilibrium both the forces and the torques must sum to 0.
 
DaleSpam said:
For an object to be in static equilibrium both the forces and the torques must sum to 0.

Right this is what I've been using to try to figure it out but I get stuck with something like x+y=T where x and y are unknown.
 
Yes, it is possible to have a system where you have too many unknown forces to solve. Such a system is known as "statically indeterminate".

In order to solve such a system you have to include the material properties of the beam and calculate the amount of stress and strain. This adds additional equations and gives you a system you can solve.
 
DaleSpam said:
Yes, it is possible to have a system where you have too many unknown forces to solve. Such a system is known as "statically indeterminate".

In order to solve such a system you have to include the material properties of the beam and calculate the amount of stress and strain. This adds additional equations and gives you a system you can solve.

Awesome, thank you so much!
 
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