The planet Mars has two moons: Phobos and Deimos. Phobos is in asmaller orbit (i.e....

The planet Mars has two moons: Phobos and Deimos. Phobos is in a smaller orbit (i.e. closer to Mars) than Deimos is. What does this tell us about the relative speeds and orbital periods of the two moons?

THE OPTIONS ARE:

1) Phobos is moving faster and has a larger orbital period

2.) Phobos is moving faster, Deimos has a larger orbital period

3.) Deimos is faster and has a larger orbital period

4.) Deimos is faster, Phobos has a larger orbital period

Solutions

Expert Solution

The correct option is 2.) Phobos is moving faster , Diemos has a larger orbital period

Reason : Phobos has smaller orbit therefore it will move faster and speed is inversely proportional to period therefore it's orbital period will be smaller or Diemos will have larger period..

genius_generous answered 1 year ago

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