Physics

Problem

A hiker walks

5\,\text{km}

at an angle of

60^{\circ}

north of east, and then

5\,\text{km}

due east. Determine the magnitude of her total displacement from the starting point. a)

9.7\,\text{km}

8.7\,\text{km}

10\,\text{km}

7.5\,\text{km}