A point charge `q_(0)` is placed at the centre of uniformly charges ring of total charge Q and radius R. If the point charge is slightly displaced with negligible force along axis of the ring then find out its speed when it reaches a large distance.

Explanation

To solve the problem, we will follow these steps:

### Step 1: Understand the System
We have a point charge \( q_0 \) placed at the center of a uniformly charged ring with total charge \( Q \) and radius \( R \). When the charge \( q_0 \) is slightly displaced along the axis of the ring, we need to find its speed when it reaches a large distance.

### Step 2: Calculate the Electric Potential at the Center
At the center of the ring, the electric potential \( V \) due to the uniformly charged ring is given by the formula:
\[
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