Difficulty: Medium
Correct Answer: West
Explanation:
Introduction / Context:
All moves are equal-length diagonals on the 8-wind compass. Summing vectors shows a clean cancellation that leaves a pure West displacement from P to T.
Given Data / Assumptions:
Concept / Approach:
Represent NW = (−a, +a) and SW = (−a, −a) in equal components (a = 2/√2 km). Then add vectors.
Step-by-Step Solution:
NW + SW = (−a, +a) + (−a, −a) = (−2a, 0) ⇒ pure West.There are two such pairs in the sequence, so total = (−4a, 0) ⇒ still due West.Therefore, T lies directly West of P.
Verification / Alternative check:
Draw a square lattice: each NW followed by SW shifts two units left with no net vertical change; repeating twice doubles the West shift.
Why Other Options Are Wrong:
South-West/North-West/North imply vertical offset, which cancels here.
Common Pitfalls:
Mistaking diagonal sequences as arcs; they are straight line segments at 45°.
Final Answer:
West
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