Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Transcribed Image Text:**Title: Analyzing Velocity Versus Time Graphs**
This image provides a velocity-versus-time graph from which an acceleration-versus-time graph is requested to be drawn. The graph plots velocity (\(v\)) on the vertical axis against time (\(t\)) on the horizontal axis.
**Graph Description:**
1. **Velocity Change:**
- The graph starts at a velocity of 2 m/s at time \(t=0\).
- The velocity decreases linearly to -16 m/s at \(t=8\) seconds, indicating constant negative acceleration.
- From \(t=8\) seconds to \(t=26\) seconds, the velocity remains constant at -16 m/s, indicating no acceleration.
- From \(t=26\) seconds to \(t=36\) seconds, the velocity decreases linearly from -16 m/s to -22 m/s, indicating another period of constant negative acceleration.
2. **Key Graph Sections:**
- **0 to 8 seconds:** Linear decrease in velocity indicates constant negative acceleration. Its slope can be calculated by the change in velocity divided by the change in time: \((-16 - 2) / (8 - 0) = -18/8 = -2.25\) m/s².
- **8 to 26 seconds:** Constant velocity implies zero acceleration.
- **26 to 36 seconds:** Linear decrease in velocity from -16 m/s to -22 m/s implies another constant negative acceleration with a slope of: \((-22 - (-16)) / (36 - 26) = -6/10 = -0.6\) m/s².
**Conclusion:**
To draw the acceleration-versus-time graph:
- Plot a horizontal line at -2.25 m/s² from 0 to 8 seconds.
- A zero acceleration line from 8 to 26 seconds.
- A horizontal line at -0.6 m/s² from 26 to 36 seconds.
This representation will visually depict how acceleration changes over time at different intervals based on the given velocity data.
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