Calculating Vertical Distance of Electron in 2D Motion

[Soulax]

An electron is ejected horizontally at a speed of 1.5*10^6 m/s from the electrong gun of a computer monitor.
if the viewing screen is 0.35m from the end of the gun, how far will the electron travel in the vertical direction before hitting the screen?

so what I don't get is if they want me to calculate the distance before it hits the screen and if yea how do I do it? I know Ill have to take in account Vx and Vy but I am not sure of the data they give me...

Thanks allot!

 

[tiny-tim]

Hi Soulax!

An electron is just like any other projectile under gravity …

use the standard constant acceleration equations. ​

 

[Soulax]

I know that.. its not the problem I don't know what to do with x and y components

 

[tiny-tim]

Use x to find the time, t, then use that time in y …

what do you get? ​

 

[Soulax]

hmm sorry didnt get it :P can you show me an example please?

 

[tiny-tim]

(just got up :zzz: …)

Sorry, on this forum you have to do it yourself.

Show us what you tried, and where you're stuck, and then we'll know how to help!

 

[Soulax]

its ok I got it my broblem was that I didnt understand the right situation :)

thank you verymuch anyway :)