AP Physics question

Pre-College Issues High School Life
1

<p>I am really horrible at physics and we have to do a presentation tomm on a question. Can you guys help me please??? I have no idea.</p>

<p>Two small beads having postive charges 3q and q are fixed at the opposite ends of a horizontal, insulating rod, extending from the origin to the point x = d. A third small bead is free to slide on the rod. At what postion is the third bead in equilibrium? Can it be in stable equilibrium?</p>

<p>Thanks alot</p>

2

<p>solve this for x:</p>

<p>K3Q/X^2 = KQ/(D-X)^2</p>

<p>....it will find the distance from the origin in terms of D where the electrostatic force from both beads is equal. I would do it, but I'm already late for school.</p>