- #1

songoku

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## Homework Statement

Which of the following statements about geostationary satellite is correct?

a. geostationary satellites must orbit from east to west

b. the orbital radius of a geostationary satellite can be varied as long as its period is 24 hours

c. it is a constellation of at least two satellites

d. any geostationary satellites are not able to view the north and south poles

e. the mass of a geostationary satellite does not have to be fixed.

## Homework Equations

gravitational force

centripetal force

## The Attempt at a Solution

I think the answer is (d). Geostationary satellite is located on equator so it can't view the poles. But I am not sure about (e). From equation gravitational force = centripetal force, the mass of satellite will cancel out so the orbit is independent of the mass of satellite, so maybe (e) is the correct one?

Thanks