# Block on Spring SHM, Finding angular frequency

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1. Mar 5, 2017

1. The problem statement, all variables and given/known data
An "ideal" spring with spring constant 0.45 N/m is attached to a block with mass 0.9 kg on one end and a vertical wall on the other. The floor has negligible friction, and you give the block a push and then let go. You observe that the block undergoes simple harmonic motion with a maximum speed of 2.2 m/s.

What is the angular frequency of the oscillations?

2. Relevant equations
omega= 2*pi*f
v=2*pi*f*sqrt(A^2-x^2)
3. The attempt at a solution
f=v/(2*pi*sqrt(A^2-x^2))
angular frequency= 2*pi*(v/(2*pi*sqrt(A^2-x^2))) I don't think im doing this right because i dont know A or x

Last edited: Mar 5, 2017
2. Mar 5, 2017

### Staff: Mentor

Hi SadDan. Welcome to Physics Forums.

You need to show an attempt at solution before help can be offered. Show us what you've tried.

3. Mar 5, 2017

### Staff: Mentor

Have you checked your textbook or class notes for formulas related to simple harmonic motion (SHM) or the mass-spring oscillator? You should find something on the period and frequency of oscillation. Failing that, do a web search; there is an abundance of relevant hits. For example, an excellent site for physics reference is the Hyperphysics site which has an entry for simple harmonic motion.

4. Mar 5, 2017