What is the angular velocity of a particle lying on the axis of rotation ?

Explanation

To solve the question of what the angular velocity of a particle lying on the axis of rotation is, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Angular Velocity**:
Angular velocity (ω) is defined as the rate of change of angular displacement with respect to time. It describes how fast an object is rotating around an axis.

2. **Identify the Axis of Rotation**:
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