# Homework Help: Quick Clarification Question (Oscillations)

1. Jun 20, 2010

### SuperCass

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

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?

Last edited by a moderator: Apr 25, 2017
2. Jun 20, 2010

### RoyalCat

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, $$F=ma=m\omega^2 A$$ 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

3. Jun 20, 2010

### SuperCass

That's what I thought. Thanks very much!