1. The problem statement, all variables and given/known data Four particles with equal charges q and equal masses m are placed on a plane so that they form the corners of a square with side length a. The charges are then released from rest at this configuration (shown as (i) in the figure). After the release, the particles accelerate outward along the directions of the diagonals. As all charges are equal, they keep the "square shape" they form, i.e., corners always form a square with side length continuously increasing with time. (a) Is this a constant-acceleration motion? (b) Consider the moment of time when the side length has reached the value 2a (shown as (f ) in the figure). Let v be the common speed of the charges. Find v. (c) Consider the time when the charges are infinitely far apart (i.e., side length is 1). Find the common speed V∞ of the charges. 2. Relevant equations F=[kq(1)q(2)]/r^2 F=q.E 3. The attempt at a solution I think I do not need to think algebraically.