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## Homework Statement

A 7.0 kg mass is hung from the bottom end of a vertical spring fastened to the ceiling. The mass is set into veritcal oscillations with a period of 2.6s

Find the spring constant.

## Homework Equations

w = [tex]\sqrt{k/m}[/tex]

w = 2pi * f

f = 1/T

## The Attempt at a Solution

f = 1/T

= 1/2.6

= 0.385 Hz

w = 2pi * 0.385

= 2.42

w = [tex]\sqrt{k/m}[/tex]

w = k/7

5.85 = k/7

**k = 40.96**

Feel like my math could be wrong at the end there. Overall though, is this how its to be done? I tried using F = -kx...ma = -kx but I didn't have an 'x'.