FYKOS Year 27 Series 1 Problem 5 — a bead · FYKOS 27 #27.1.5

Physics · mechanics

Problem

A small bead of mass

m

and charge

q

is free to move in a horizontal tube. The tube is placed in between two spheres with charges

Q=−q

. The spheres are separated by a distance 2

a

. What is the frequency of small oscillations around the equilibrium point of the bead? You can neglect any friction in the tube.