A particle hanging from a thread is launched horizontally such that it completes a circle. Is the motion periodic or oscillatory?

Explanation

To determine whether the motion of a particle hanging from a thread and launched horizontally is periodic or oscillatory, we can analyze the definitions and characteristics of both types of motion.

### Step-by-Step Solution:

1. **Understanding Periodic Motion**:
- Periodic motion is defined as motion that repeats itself after a fixed time interval. Examples include circular motion and the motion of a pendulum.

2. **Understanding Oscillatory Motion**:
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