You release three balls simultaneously from the same height above the floor. The balls all carry the same quantity of surplus positive charge, but they have different masses: \(1 \mathrm{~kg}, 2 \mathrm{~kg}\), and \(3 \mathrm{~kg}\). In addition to the gravitational field due to Earth, there is a uniform electric field directed downward. Assume that the balls are far enough apart that they have negligible influence on one another and that air resistance can be ignored.

(a) Which ball has the greatest speed when it reaches the floor? 

\((b)\) If all three were negatively charged and at least one will hit the floor, which ball would reach the floor first?