(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Electrons in a TV tube are accelerated from rest through a 25-kV potential difference. With what speed do they hit the TV?

V = 25*10^3 J/C

2. Relevant equations

I'm not really sure here. I'm thinking you have to use Newtonian mechanics somewhere here.

So,

x(t) = (1/2)(a_x)t^2 + (v_0)t +x_0

(v_f)^2 = (v_0)^2 + 2(a_x)d

You also need electomagnetic equations.

So,

delta-V = delta-U/q = -E*delta-r

3. The attempt at a solution

This is where I have trouble. I don't even know where to start. Any pointers in the right direction (that aren't too vague!) would greatly be appreciated.

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# Electrons in a TV tube accelerated from rest.

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