avitational force and the electrostatic force act on the particle, which moves on a horizontal straight line without rotating. The electric potential at A is 36.0 V greater than that at B; in other words, VA - VB = 36.0 V. What is the translational speed of the particle at point A?

Respuesta :

Answer:

[tex]V={3.5\times 10^{5}}\ m/s[/tex]

Explanation:

Given that

VA - VB = 36.0 V

If we assume that ,the particle is electron.

For electron

The mass of electron

[tex]m=9.1\times 10^{-31}\ kg[/tex]

The charge on electron

[tex]q=1.6\times 10^{-19}\ C[/tex]

q( VA - VB) = 1/2 m V²                   (energy conservation)

[tex]1.6\times 10^{-19}\times 36=\dfrac{1}{2}\times 9.1\times 10^{-31}V^2[/tex]

[tex]\dfrac{3.2\times 10^{-19}\times 36}{9.1\times 10^{-31}}\ = V^2[/tex]

[tex]V=\sqrt{1.265\times 10^{13}}\ m/s[/tex]

[tex]V={3.5\times 10^{5}}\ m/s[/tex]