The two parallel plates in the figure below are 2.0 cm apart and the electric field strength between them is 1.5 10^4 N/C. An electron is launched at a 45° angle from the positive plate. What is the maximum initial speed v0 the electron can have without hitting the negative plate?
(The mass and charge of the electron are 9.11x10^-31 kg and -1.6x10^-19 C,