An electron in a cathode-ray tube is traveling horizontally at 2.10×10^9 cm/s when deflection plates give it an upward acceleration of 5.30×10^17 cm/s^2 .
B.) What is its vertical displacement during this time?
My work http://i.imgur.com/AqKlTuX.jpg
I am asking this because the answer my teacher gave is 2.3cm
Thanks in advance