Answer :
Answer:
The concepts of uniform velocity and nonuniform velocity pertain to how an object's velocity changes (or doesn't change) over time. Here are the differences:
### Uniform Velocity:
- **Definition**: An object is said to have a uniform velocity if it covers equal distances in equal intervals of time, irrespective of how small these intervals are.
- **Characteristics**:
- The magnitude and direction of the velocity remain constant.
- The object moves in a straight line at a constant speed.
- There is no acceleration, as the velocity is not changing.
- **Graphical Representation**: On a distance-time graph, uniform velocity is represented by a straight line with a constant slope.
### Nonuniform Velocity:
- **Definition**: An object is said to have a nonuniform velocity if it covers unequal distances in equal intervals of time or changes direction while moving.
- **Characteristics**:
- The magnitude and/or direction of the velocity change.
- The object may speed up, slow down, or change direction.
- There is acceleration (positive or negative) or change in direction because the velocity is changing.
- **Graphical Representation**: On a distance-time graph, nonuniform velocity is represented by a curve, indicating the change in distance covered over time.
### Summary:
- **Uniform Velocity**: Constant speed and direction (no change in velocity).
- **Nonuniform Velocity**: Variable speed and/or direction (change in velocity).
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Answer:
Uniform velocity :
- An item with constant velocity travels the same distance in the same amount of time.
- A uniformly moving item has a fixed direction.
- Example: A traveling object with a uniform velocity of 10km/h towards the north.
Non-uniform velocity :
- When such an item travels different lengths in equal intervals mostly in a specific orientation.
- When the direction of motion fluctuates, it would seem to be non-uniform.
- Example: A constant-speed spinning fan with changing velocity.
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