If a particle is moving with a constant velocity, what is its acceleration?

Explanation

To solve the question "If a particle is moving with a constant velocity, what is its acceleration?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definitions**:
- **Velocity**: It is the rate of change of displacement with respect to time. If a particle is moving with constant velocity, it means its speed and direction do not change.
- **Acceleration**: It is defined as the rate of change of velocity with respect to time. Mathematically, it is expressed as \( a = \frac{dv}{dt} \), where \( dv \) is the change in velocity and \( dt \) is the change in time.

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