Advanced physics.... Three particles of equal mass are located on the xy-plane and have the following charge and initial position: p1 has charge 2 microcoulombs and initial position (0, 0.3 m), p2 has charge -2 microcoulombs and initial position (0, -0.3 m) p3 has charge 4 microcoulombs and initial position (0.4 m, 0) Find a formula for the velocity of the third particle as a function of time if only the electrostatic force is present. Hint: None of the particles have a fixed location. They all exert forces on each other