# Homework Help: What is the resulting frequency of the oscillation?

1. Nov 30, 2013

### jimmyboykun

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

A 0.31-kg mass is hanging from a spring with spring constant 13 N/m. Then the mass is displaced from the equilibrium by 3.3 cm and let go.

2. Relevant equations

for frequencthy the equation would be 1/T

3. The attempt at a solution

to T I would use this equation 2∏sqrtm/k
2∏sqrt0.033m/13N/m= 0.316566651s

1/0.316566651s= 3.158892436Hz
I got this wrong but, this is the only equation for frequency that I was taught in class. What did I do wrong.

2. Nov 30, 2013

### Staff: Mentor

In the equation, 'm' stands for the mass (measured in kg); you put in the displacement (measured in meters). Fix that!

3. Nov 30, 2013

### jimmyboykun

ok got it, but what about the displacement? does it not play a role in the equation?

4. Nov 30, 2013

### Staff: Mentor

Not in that equation, which is for the period. The period of oscillation (for SHM) does not depend on amplitude.