Satellite A orbits a planet with a speed of 10,000 m/s. Satellite B is twice as massive as satellite A and orbits at twice the distance from the center of the planet. What is Satellite B's speed?

3 answers

centripetal force = gravitational force

mass*v^2/r=mass*(GMe/r^2)

v^2=GMe/r

So the velocity is dependent on the distance from the center of the Earth only (GMe is a constant).

I will be happy to critique your thinking on the answer.

vbv

10000m/s

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