3D Equilibrium of 4-wheel support

AI Thread Summary
The discussion revolves around determining the reactions at roller supports A and B for a plate subjected to a central load of 400N. The user has calculated the sum of forces and moments, arriving at the equation A + B = 200N. There is uncertainty about whether the reactions at A and B are equal and how to find their individual values. Participants are encouraged to clarify the choice of rotation axes used in their calculations. The thread emphasizes the importance of understanding equilibrium in 3D support systems.
washer
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Homework Statement


The plate has a dimension of 460mm X 260mm, subjected to a central load of 400N.
Determine the reaction A and B, each representing a roller support as a wheel, located at the center of one edge. (opposite blue arrows have the same resultant value.)
Are they the same ? If not how can I find them out ?

15oN29.jpg


Homework Equations


N/A

The Attempt at a Solution


I did both force and moment summation giving me A+B=200.
I am sorry if this seems like a kindergarten problem.
 
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What did you take as rotation axes ?
 
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