A particle with a mass of 2.0 x 10-5 kg and a charge of +2.0 C is

Question:

A particle with a mass of 2.0 x 10-5 kg and a charge of +2.0 μC is released in a (parallel plate) uniform horizontal electric field of 12 N/C.
(a) How far horizontally does the particle travel in 0.50 s?
(b) What is the horizontal component of its velocity at that point?
(c) If the plates are 5.0 cm on each side, how much charge is on each?