 #1
Redwaves
 134
 6
 Homework Statement:

Find the amplitude of the modes 2 and 3 for string with 5 beads.
The string is fixed at each extremity.
The string is at rest and I have a displacement vector ( I'm not sure what that mean) $$(3,0,\sqrt{3},2,2)$$
 Relevant Equations:

$$A_n = sin(\kappa p)$$
$$A_n = cos(\kappa p)$$
Hi,
First of all, I'm wondering if a beaded string is the right term?
I have to find the amplitude of the modes 2 and 3 for a string with 5 beads.
In my book I have $$A_n = sin(\kappa p)$$ or $$A_n = cos(\kappa p) $$ it depends if the string is fixed or not I guess. where $$\kappa = \frac{n\pi p}{N+1}$$
Can I use this formula? It seems too easy.
First of all, I'm wondering if a beaded string is the right term?
I have to find the amplitude of the modes 2 and 3 for a string with 5 beads.
In my book I have $$A_n = sin(\kappa p)$$ or $$A_n = cos(\kappa p) $$ it depends if the string is fixed or not I guess. where $$\kappa = \frac{n\pi p}{N+1}$$
Can I use this formula? It seems too easy.