- #1

AGNuke

Gold Member

- 455

- 9

**A positive charge +Q is fixed at a point A on line AC. Another positively charged particle of mass m and charge +q is projected from a point B with velocity u. The point C is at large distance from A and B is situated at distance d perpendicular from point C from AC**

Find the minimum distance of approach of +q towards +Q during motion.

Find the minimum distance of approach of +q towards +Q during motion.

**Take [itex]Qq = 4\pi \varepsilon _{0}[/itex] and [itex]d=\sqrt{2}-1[/itex]**

I tried at an instance where the velocity component directed towards +Q becomes zero. But I can't do anything about the perpendicular component of velocity as how it will increase the distance of particle from line AC.