Pregunta: Dos cargas eléctricas de +8 μC están situadas en A (0, 0,5) m y B (0, -0,5) m. Si una partícula de masa m = 0,5 g y carga q = -1 μC se sitúa en un punto C (1, 0) m con una velocidad inicial de 1,0 x 10³ m/s, calcula su velocidad en el punto D (0, 0) m.

First, sketch the problem to understand the symmetry of the system, with charges at points A and B, and the particle starting at point C moving towards point D. Assume that there is no gravitational force affecting the 0.5g mass. Because of the symmetry, the vertical components of the forces acting on the 0.5g mass, which has a negative charge, will cancel out. Focus only on the horizontal components of each force.