What do you understand by free vibrations of a body?

Explanation

### Step-by-Step Text Solution:

1. **Definition of Free Vibrations**:
Free vibrations refer to the oscillations or periodic motions of a body that occur without any external forces acting on it.

2. **Characteristics of Free Vibrations**:
- The body moves back and forth around an equilibrium position.
- The motion is periodic, meaning it repeats at regular intervals.
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