In the figure below an electron is shot directly toward the center of a large metal plate that has surface charge density -2.80 × 10-6 c/m2. if the initial kinetic energy of the electron is 4.80 × 10-17 j and if the electron is to stop (due to electrostatic repulsion from the plate) just as it reaches the plate, how far from the plate must the launch point be?

i guess that visual aids present persuasive examples to what you are presenting, some factors would be theme (does it fit with the color, information, what you are presenting), size (can you see it, is it a big enough span of data/information), and overall look of the visual aid.

hope this : )

where are the vectors ?

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over