Physics

Problem

A comet approaches the Sun to a closest distance (perihelion) of

0.50\,\text{AU}

and has an orbital period of

8\,\text{years}

. The farthest distance (aphelion) of the comet from the Sun is approximately a)

8\,\text{AU}

7.5\,\text{AU}

5\,\text{AU}

4.5\,\text{AU}