- #1

MisterP

- 47

- 3

## Homework Statement

Harmonically fluctuating object. It`s full energy (E) is 3*10

^{-5}J. Maximum force (F) on object is 1.5 * 10

^{-3}N. Period is 2 seconds (T) and starting phase (ƒ) is 60°. Need to write equation for these fluctuations.

E = 3*10

^{-5}J

F= 1.5 * 10

^{-3}N

T = 2 s

ƒ = 60°

## Homework Equations

I know this formula X (fluctuation formula) = A*cos(ω*t + ƒ)

ω - fluctuation angular frequency

t - time

ƒ - starting phase

## The Attempt at a Solution

I found this formula E/F = A/2. Looks like I can calculate A (max amplitude). So 3*10

^{-2}/1.5 * 10

^{-3}= A/2 A = 0.04 m (I guess it is in meters?)

So, how can I calculate ω now? Edit: just found ω = 2Π/t, could this be right?