Use data from your graph of all four barges to explain how you can tell when a barge is increasing in speed.
Understand the Problem
The question is asking how to analyze the data from a graph to determine when a barge is increasing its speed. This involves interpreting the relationship between the data points on the graph that represent the speed of the barges.
Answer
Look for increasing slopes on the position vs. time graph; steeper slopes indicate rising speed.
The barge is increasing in speed when the slope of the position vs. time graph is increasing. A steeper slope over time indicates acceleration.
Answer for screen readers
The barge is increasing in speed when the slope of the position vs. time graph is increasing. A steeper slope over time indicates acceleration.
More Information
In a position vs. time graph, the slope represents speed. An accelerating barge will show an upward curvature in the graph, indicating increasing speed.
Tips
Confusing slope with position itself can lead to incorrect assumptions. Focus on changes in slope, not just the slope value.
Sources
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