Answer :
The speed of the proton is [tex]9.79*10^5m/s[/tex]
Data;
- potential difference (A) = 3500V
- potential difference (B) = -1500V
Velocity of The Proton
The work done to move through a potential velocity 'v' is q
The potential difference 'v' is the difference between A and B
[tex]V = 3500-(-1500) = 5000v[/tex]
But the work is converted into kinetic energy of proton.
[tex]q_pV = \frac{1}{2}m_pV^2\\[/tex]
Let's substitute the values and solve for the velocity
[tex](1.6*10^-^1^9)*(5000)=\frac{1}{2}(1.67*10^-^2^7)v^2\\v^2 = \frac{2* 1.6*10^-^1^9 * 5000}{1.67*10^-^2^7}\\ v = \sqrt{9.58*10^1^1} \\v = 9.79 * 10^5m/s[/tex]
The speed of the proton is [tex]9.79*10^5m/s[/tex]
Learn more about work done on an electron here;
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