Physics

Problem

If upward direction is chosen as positive, what is the sign of the acceleration due to gravity

g

for a body in free fall near the Earth’s surface? a)

+9.8\,\text{m}\,\text{s}^{-2}

0

-9.8\,\text{m}\,\text{s}^{-2}

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