A hiker moves east

PHYSICS · Single correct · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

A hiker moves 4 km4\,\text{km} east, then 3 km3\,\text{km} north, and finally 4 km4\,\text{km} west. What is the magnitude of his displacement from the starting point? (a) 8.5 km8.5\,\text{km} (b) 11 km11\,\text{km} (c) 3 km3\,\text{km} (d) 5 km5\,\text{km}

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