A student walks 20 m east and then 20 m west along the same straight corridor and stops

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Kinematics · Kinematics

Problem

A student walks 20 m east and then 20 m west along the same straight corridor and stops. Which pair correctly represents the distance travelled and the displacement from the starting point? (a) Distance=0 m,  Displacement=40 m eastDistance = 0\,\text{m},\; Displacement = 40\,\text{m east} (b) Distance=40 m,  Displacement=20 m eastDistance = 40\,\text{m},\; Displacement = 20\,\text{m east} (c) Distance=40 m,  Displacement=0 mDistance = 40\,\text{m},\; Displacement = 0\,\text{m} (d) Distance=20 m,  Displacement=20 m westDistance = 20\,\text{m},\; Displacement = 20\,\text{m west}

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