A car travels due east in and then due north in the next

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

Problem

A car travels

3\,\text{km}

due east in

10\,\text{min}

and then

4\,\text{km}

due north in the next

10\,\text{min}

. What is the magnitude of its average velocity for the whole journey? (a)

21\,\text{km/h}

(b)

20\,\text{km/h}

(c)

15\,\text{km/h}

(d)

25\,\text{km/h}

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