# Broken String and Speeding Charges

Three identical point charges, each with mass $m=1~\text{g}$, are connected by strings of the same length $l$ so that they form an equilateral triangle ABC. Initially, the charges are at rest and the electrostatic potential energy of the system is $U_{0}=1~\text{J}$. Suddenly, the string connecting the charges at A and B snaps. What will be the maximum speed in meters per second of the charge located at C.

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