# Doofy Spring constant problem problem

1. Oct 25, 2004

### Supaiku

A toy make requires a spring mechanism to drive an attached component with a period of .50s. If the mass is 10g what must thevalue of hte psring constant k be?

I can't figure out how the heckle you are supposed to solve for this without the distance. Is it me or the question, if it's me; how bout' some equations.

2. Oct 25, 2004

### spacetime

3. Oct 26, 2004

### Supaiku

Thanks! but uh... where's that from? I can't figure it out :(

EDIT: nvm, Thanks again:D

Last edited: Oct 26, 2004
4. Oct 26, 2004

### spacetime

The equation for Simple harmonic motion (derived from the equation $$F= -kx$$ ) is

$$x=Asin\omega t$$

where

$$\omega = \sqrt\frac{k}{m}$$
From this, the time period of motion is $$\frac{2\pi}{\omega}$$

So, you can derive that formula.