A velocity-time graph depicts the relationship between an object's velocity and time. It shows how the velocity of the object changes over time. The y-axis represents the velocity (usually in meters per second), while the x-axis represents time (usually in seconds).
Key points about a velocity-time graph include:
- The slope of the graph indicates acceleration. A positive slope means the object is speeding up, while a negative slope means it is slowing down.
- A horizontal line indicates constant velocity, and if the line is on the x-axis (velocity of zero), it means the object is at rest.
- The area under the graph represents the displacement of the object over the time interval.
- Changes in the direction of the object (such as going backward) can be indicated by the sign of the velocity (positive or negative).
Overall, a velocity-time graph provides insight into the motion of an object, including its speed, direction, and changes in motion over time.
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