Quick Clarification Question (Oscillations)

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SUMMARY

The discussion clarifies the interpretation of the equation for maximum amplitude in oscillatory motion, specifically referencing the formula A = g / (ω²). The context is centered around a problem involving a pebble on a board, where the pebble remains in place as long as the centripetal force (F = mω²A) does not exceed gravitational force. The answerer emphasizes that the equation applies to the specific scenario presented, rather than universally across all oscillatory problems.

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The Attempt at a Solution



I just have a quick question about http://answers.yahoo.com/question/i...dDvWAH.7iY1ZZYRg--&paid=add_comment#openions"

When the answerer says that "For the general case (in case I made a numerical error), max amplitude is given by: A = g / (w^2)," is he just talking about this problem specifically or any problem in general?
 
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It is only that problem specifically. The pebble will only remain on the board as long as the force acting on it is less than the force of gravity. If the maximum force, [tex]F=ma=m\omega^2 A[/tex] were greater than the force of gravity, then the pebble would be thrown off the board.

He stated the general case in terms of any angular frequency given, not for any problem in the world. That would be a bit silly. :p
 
That's what I thought. Thanks very much!
 

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