Physics

Problem

On a scale diagram where

1\,\text{cm}

represents

2\,\text{km}

, two displacement vectors are drawn: one of length

3\,\text{cm}

pointing east and another of length

4\,\text{cm}

making an angle of

60^{\circ}

north of east. The actual magnitude of the resultant displacement is a)

\approx 10\,\text{km}

\approx 7.2\,\text{km}

\approx 12\,\text{km}

\approx 14\,\text{km}