A runner goes north at and then east at

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

Problem

A runner goes

3\,\text{km}

north at

6\,\text{km/h}

and then

4\,\text{km}

east at

8\,\text{km/h}

. What is the magnitude of his average velocity for the entire trip? (a)

8.3\,\text{km/h}

(b)

5\,\text{km/h}

(c)

10\,\text{km/h}

(d)

7\,\text{km/h}

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