What can be said about velocity of the object if its displacement-time graph is parallel to displacement axis?

Explanation

To determine what can be said about the velocity of an object when its displacement-time graph is parallel to the displacement axis, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Graph**:
- A displacement-time graph shows how displacement changes over time. If the graph is parallel to the displacement axis (y-axis), it indicates that the displacement remains constant over time.

2. **Definition of Velocity**:
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