At some instant the velocity components of an electron moving between two charged parallel plates are vx = 1.3 105 m/s and vy = 3.6 103 m/s. Suppose that the electric field between the plates is given by E = (120 N/C) j.

Question

At some instant the velocity components of an electron moving between two charged parallel plates are vx = 1.3 105 m/s and vy = 3.6 103 m/s. Suppose that the electric field between the plates is given by E = (120 N/C) j. 
(a) What is the electron's acceleration in the field? 
m/s2 j 
(b) What is the electron's velocity when its x coordinate has changed by 4.8 cm? 
m/s i + m/s j

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