An electron is projected with an initial speed of 1.60×106 m/s into a uniform field between two parallel plates where each plate measures 2.00 cm in length. Assume that the field between the plates is uniform and directed vertically downward, and that the field outside the plates is zero. The distance between the two plates is 1.00 cm. The electron enters the field at a point midway between the plates.
If the electron just misses the upper plate as it emerges from the field, find the speed of the electron as it emerges from the field?