What do you mean by state of motion of a body.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Concept**: The state of motion of a body refers to its current condition in terms of movement. This includes whether the body is moving or at rest.

2. **Defining Speed and Velocity**: Speed is a measure of how fast an object is moving, while velocity includes both speed and direction. Thus, velocity provides more information about the state of motion than speed alone.

3. **Identifying Types of Motion**:
- If an object is not changing its position over time, it is said to be at rest, which corresponds to a state of zero speed.
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