Homework Help: physics

Posted by Jennifer on Thursday, October 2, 2008 at 12:24am.

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?

physics - bobpursley, Thursday, October 2, 2008 at 9:03am
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.
physics - Anonymous, Wednesday, November 21, 2012 at 4:16pm
vbv

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