Physics

Problem

An athlete jogs along a straight track. Displacements to the right are defined as positive. The athlete is reported to have a velocity of

4.0\,\text{m/s}

to the left. Which of the following numerical values best represents this velocity in the chosen coordinate system? a)

+4.0\,\text{m/s}

-4.0\,\text{m/s}

-8.0\,\text{m/s}

4.0\,\text{m/s}