# Homework Help: Period of vibration

1. May 11, 2009

### chart2006

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

The slender rod AB of weight $$W_{AB}$$ is attached to two identical collars, each of weight $$W$$. The system lies in a horizontal plane and is in equilibrium in the position shown when the collar A is given a small displacement and released. Calculate and plot the period of vibration for values of the angle β from 10 to 80 degrees for weight ratios $$\frac{W}{W_{AB}}$$ of 0, 2, and 4.

I'm looking for help as to how to set the problem up that's all! Any help is appreciated!

2. Relevant equations

3. The attempt at a solution

Last edited by a moderator: Apr 24, 2017
2. May 11, 2009

### diazona

What does the k in the diagram represent?

3. May 12, 2009

### physicsnoob93

spring constant, i would guess.

4. May 13, 2009

### chart2006

Yes it's the spring constant