# Electrons moving and entering regions. Mesuring vertical position and exit angle.HELP

## Homework Statement

Electrons moving initially at 2.4 X 106 m / s in a horizontal direction. They enter a region between two plates of 2 cm in length and are subjected to an acceleration of 4x 1014 m/s2, vertical and pointing upwards. Determine:
a) the vertical position of the electrons as they exit the region between the plates
b) the exit angle

## Homework Equations

Honestly, I dont even know where to start with this, I have no idea what it looks like! Can someone explain it to me, at least, what Its asking, in english?

## The Attempt at a Solution

Can't even try, i dont get it.

Redbelly98
Staff Emeritus
Homework Helper

## Homework Statement

Electrons moving initially at 2.4 X 106 m / s in a horizontal direction. They enter a region between two plates of 2 cm in length and are subjected to an acceleration of 4x 1014 m/s2, vertical and pointing upwards. Determine:
a) the vertical position of the electrons as they exit the region between the plates
b) the exit angle
This is a projectile motion problem. But, instead of the acceleration being g=9.8 m/s2, it is 4x1014 m/s2, downward.
Also, each electron travels 2 cm for the horizontal displacement, and we are given the initial velocity.

Hope that helps.

This is a projectile motion problem. But, instead of the acceleration being g=9.8 m/s2, it is 4x1014 m/s2, downward.
Also, each electron travels 2 cm for the horizontal displacement, and we are given the initial velocity.

Hope that helps.

Yes it does help, very much so! Thank you! I'll try that :)

This is a projectile motion problem. But, instead of the acceleration being g=9.8 m/s2, it is 4x1014 m/s2, downward.
Also, each electron travels 2 cm for the horizontal displacement, and we are given the initial velocity.

Hope that helps.

I still don't understand the 2 cm long plates buisiness though... cant seenm to picture what it looks like?

Redbelly98
Staff Emeritus