Physics 12 Static Equilibrium Question!
How to understand the position of the folcrum in static equilibrium?
Stacey Warren - Expert brainly.com
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Please explain thank you.
For a regularly-shaped object, the fulcrum is exactly at the mid-point or centre point of the object.
Given that your object is a straight line, then the fulcrum is at half its total length.
@Hoslos that is not always the case, you can use the folcrum to get rid of unknow forces, but where to use it I still do not understand.
For this situation my teacher said FN1, why?
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FN1 is the fulcrum?
Is all the information given that picture only?
I think it honestly depends on the forces. If your fulcrum is in static equilibrium, then that means the moment on both sides of the fulcrum must be equal. That is,
\[\huge \sum M_L=\sum M_R\]
sorry guys, the picture is this, I can draw it , wait a sec please
take a screenshot and attach if psble
I honestly don't know. There could be more to the problem than what you know/sharing with us. I would ask your teacher and see what he says. Please let us know too! I'm curious to know why as well.
depending on how you wish to see it, you have zero or you have 3 fulcrums [fulcra!!] here
i wouldn't get too hung up on words, what matters is that you can solve problems like this. :p
you have zero or you have [3: no, no, no !!!! i meant......] ****2***** fulcrums / fulcra
@Irishboy I agree with you, by using the folcrum we can eleminate the unknow forces, or substitue one for the another to get the answer.