Weight distrubituion between two cylinders.

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SUMMARY

The discussion centers on the calculation of normal forces (N1 and N2) for a bar oscillating between two identical rotating support rolls. The equation provided, Normal force = w(1/2 ± x(t)/L), is derived from the principles of static equilibrium and dynamics. The user seeks clarification on how this equation is formulated to accurately represent weight distribution based on the position x(t) of the bar's center of gravity. The inquiry highlights the need for a deeper understanding of the mechanics involved in this scenario.

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Homework Statement


I was just websearching and came across this interesting demonstration.
http://demonstrations.wolfram.com/AMassiveBarOscillatingBetweenTwoIdenticalRotatingSupportRoll/

Homework Equations


I wanted to define the normal forces N1 and N2 based on their position x(t) from the center of gravity of the bar. the website says Normal force= w(1/2 ± x(t)/L). I really want to find out how they came up with that equation to define weight distribution.
I really need your help.
Thanks

The Attempt at a Solution

 
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