A scooter is at relative to lamp post

PHYSICS · Single correct · AP · Physics C: Mechanics · Kinematics · Kinematics

Problem

A scooter is at +12 m+12\,\text{m} relative to lamp post LL. It finally stops at +2 m+2\,\text{m} relative to bus stop BB. The bus stop is +7 m+7\,\text{m} east of lamp post LL. Calculate the scooter’s displacement relative to lamp post LL. (a) +3 m+3\,\text{m} (b) −5 m-5\,\text{m} (c) −3 m-3\,\text{m} (d) −7 m-7\,\text{m}

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