1. Describe the difference between a distance-time graph showing a steady speed and one showing acceleration. 2. In which section of her journey to school is Rani moving fastest? 3... 1. Describe the difference between a distance-time graph showing a steady speed and one showing acceleration. 2. In which section of her journey to school is Rani moving fastest? 3. Calculate Rani's speed for section C of the graph at the top of the page.
Understand the Problem
The question is asking for an explanation of the difference between steady speed and acceleration based on a distance-time graph, as well as specific details about Rani's speed during her journey to school.
Answer
1. Steady speed: straight line; acceleration: curved. 2. Fastest in section B. 3. Speed in C: 1.19 m/s.
- A distance-time graph with steady speed has a straight line with constant slope, while acceleration shows a curved line with increasing slope. 2. Rani moves fastest in section B where the line is steepest. 3. Rani's speed in section C is 1.19 m/s.
Answer for screen readers
- A distance-time graph with steady speed has a straight line with constant slope, while acceleration shows a curved line with increasing slope. 2. Rani moves fastest in section B where the line is steepest. 3. Rani's speed in section C is 1.19 m/s.
More Information
A steady speed on a distance-time graph is depicted by a linear relationship where time and distance increase at a constant rate, whereas acceleration shows a nonlinear relation as the slope changes.
Tips
Common mistakes include confusing acceleration with deceleration or not calculating the slope correctly.
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