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## Homework Statement

A circular disk of radius R and uniform density is free to pivot about a fixed point P on its circumference. Calculate the period of oscillations of the disk, in the plane of Figure I, when it is displaced by a small angle about its pivot and released.

## Homework Equations

F=ma

a=v^2/R

v=2*R*pi/T

## The Attempt at a Solution

F=mv^2/R

mg=mv^2/R

g=v^2/R

where v= 2*R*pi*/T

thus, T= 2*pi*root(R/g)

can anyone advise?