A man walks 20 m north, then 24 m east, then 10 m south. How far is he from his starting point (in m)?
Answer and explanation
Correct answer: A. 26
- Step 1: Determine the net displacements along the perpendicular north-south and east-west axes: net north displacement is , and horizontal displacement is east.
- Step 2: Apply the Pythagorean theorem to calculate the straight-line displacement: .
- Step 3: Evaluate the square root: .
Answer
26.
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