Physics

Problem

Classify each of the following physical quantities measured during a car’s motion as scalar or vector. Give a brief justification in each case. a.

120\,\text{km}

(shown on the trip meter) b.

65\,\text{km}\,\text{h}^{-1}

north c.

0.5\,\text{km}\,\text{min}^{-1}

decreasing d.

-2\,\text{m}\,\text{s}^{-2}