1. The problem statement, all variables and given/known data A coin of radius R is pivoted at a point that is distance d from the center. The coin is free to swing back and forth in the vertical plane defined by the plane of the coin. For what value of d is the frequency of small oscillations largest? 2. Relevant equations Frequency = 1/T = (1/2(pi))(k/m)^1/2 x = A cos( (omega)(t) + phi ) 3. The attempt at a solution I assume I have to find some derivative in order to maximize the value, just don't know where to start.