- #1
trixxstyle
- 2
- 0
Homework Statement
Question is attached.
I know there's a few ways to solve this, but I'm wondering specifically why my integral of F ds isn't working.
Homework Equations
F = k * q^2 / r^2
U = ∫ F ds
cos 30 = √3/2
s= rcos30
The Attempt at a Solution
U = 2 * cos 30 * k * q^2 ∫ 1/r^2 ds
U = √3 * k * q^2 ∫ 1/r^2 * √3/2 dr - (a to inf)
U = 3/2 * k * q^2 * 1/a
Attachments
Last edited: