Difficulty: Easy
Correct Answer: 20 meters South
Explanation:
Introduction / Context:
Accumulate displacements along East–West (x) and North–South (y) axes, then describe the final vector from origin.
Given Data / Assumptions:
Concept / Approach:
The final coordinates give both distance and direction relative to the start.
Step-by-Step Solution:
End point: (0, −20).Distance = 20 m; direction is straight South from the start.
Verification / Alternative check:
East and West legs cancel (20 each). Net South = 10 + 20 − 10 = 20 m.
Why Other Options Are Wrong:
They misstate either the magnitude or the direction of the net displacement.
Common Pitfalls:
Noticing that the final North leg only partially cancels prior South legs.
Final Answer:
20 meters South
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