(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Two positive charges +Q are affixed rigidly to the x axis one at x = -d and the other at x = +d. A third charge +q of massmwhich is constrained to move only in the x axis is displaced from th eorigin by a small distance s << d and then released from rest. Show that q+ will execute simple harmonic motion and determine the oscillation period T.

2. Relevant equations

Coulomb's Law F=kQ_{1}Q_{2}/r^{2}

*possibly something else to relate this to SHM*

3. The attempt at a solution

I found the force from coulomb's law, F= -4kQqs/d^{3}

but i really don't know how to relate this to SHM so i can derive an equation for period.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Coulomb's Law and Simple Harmonic Motion

**Physics Forums | Science Articles, Homework Help, Discussion**