Algebra-1

Question Analysis
This question tests the student's ability to apply the concept of absolute value to a real-world scenario. The absolute value of the displacement being 20 meters means the particle could be 20 meters away in either direction.

Key Concept Explanation
The key concept is that if , then or . This principle is applied to determine the possible displacements.

Step-by-step Solution
1. Set up the absolute value equation:

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