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Physics: Circular motion and the orbital speeds of satellites

  • Thread starter YMMMA
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  • #1
156
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Homework Statement


Satellite 1 has mass m1 & radius R1 and satellite 2 has mass m2 and radius 2R1
Which satellite’s speed is greater?

Question and my attempt are shown in the attached file.

Homework Equations


V= √GM/R

The Attempt at a Solution


I am not sure if my steps are correct, but if there’s an easier solution, I need to know it.
 

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Answers and Replies

  • #2
kuruman
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You are using the correct equations and you have the right answer. There is no easier solution if you are seeking a numerical answer for the ratio.
 
  • #3
156
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You are using the correct equations and you have the right answer. There is no easier solution if you are seeking a numerical answer for the ratio.
Okay, then.
 

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