A particle of charge Q traveling at velocity V0 enters a uniform magnetic field of width d and homogeneous strength B0 at point P1, as shown in the diagram above. T seconds later the particle exits the field at point P2, a total distance of d away from point P1 as measured strictly along the axis parallel to V0. Assuming the direction of the uniform magnetic field is perpendicular to V0, derive an explicit formula for the angle of deflection θ in this scenario.
