Answer:
(a)Distance traveled by each explorer travel as Mars rotates by 1 radian
- Opportunity=2108.71 miles
(b)Number of hours it takes Mars to rotate 1 radian=3.9152 hours
(c)Speed of each explorer around Mars.
- Opportunity=538.59 miles per hour
- Phoenix =75.59 miles per hour
Step-by-step explanation:
<u>Part A</u>
For any given parallel of latitude
Opportunity landed at 2° south latitude, where Mars’ radius is about 2110 miles.

Phoenix landed at 68° north latitude, where Mars’ radius is about 790 miles.

<u>Part B</u>
Next, we determine the distance (Length of arc) covered by each explorer as Mars rotates by 1 radian.

<u>Opportunity's Distance</u>

<u>Phoenix's Distance</u>

<u>Part C</u>
Mars rotates on its axis once every 24.6 Earth-hours.
Therefore:

<u>Part D:</u>Speed of each explorer

