A car travels north in and then south in

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

Problem

A car travels 150 m150\,\text{m} north in 30 s30\,\text{s} and then 150 m150\,\text{m} south in 60 s60\,\text{s}. Which option gives the correct pair of (average speed, magnitude of average velocity) for the whole trip? (a) 3.3 m/s,  3.3 m/s3.3\,\text{m/s},\;3.3\,\text{m/s} (b) 0 m/s,  3.3 m/s0\,\text{m/s},\;3.3\,\text{m/s} (c) 3.3 m/s,  0 m/s3.3\,\text{m/s},\;0\,\text{m/s} (d) 2.5 m/s,  2.5 m/s2.5\,\text{m/s},\;2.5\,\text{m/s}

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