What is the resulting frequency of the oscillation?

[jimmyboykun]

Homework Statement

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.

Homework Equations

for frequencthy the equation would be 1/T

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.

 

[Doc Al]

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

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

 

[jimmyboykun]

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

 

[Doc Al]

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

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