# Simple Harmonic Motion of spring

1. Nov 3, 2011

### hotspurslover

1. The problem statement, all variables and given/known data
Mass is attached to a spring and set into a vibratory motion.

m=0.10 kg
f=2.5 Hz

2. Relevant equations

f=1/2pie{sqrt(k/m)}

3. The attempt at a solution

Trying to find k (force constant)

I tried using the equation above but I can't get the right answer.

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

2. Relevant equations

3. The attempt at a solution

2. Nov 3, 2011

### JHamm

If $f = 2.5 Hz$ then $T = 0.4 s$ but we also know that $T = 2\pi \sqrt{\frac{m}{k}}$ so using that we can solve for k :)