Equation for Satellite in geosynchronous oribt

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SUMMARY

The discussion focuses on calculating the velocity and radius of a geosynchronous satellite orbiting Earth without directly using the radius in the velocity equation or vice versa. The key equations referenced include the velocity formula V = √(G * Me / r) and the centripetal force equation F = mω²r. The participant identifies that the satellite completes a full revolution in 24 hours, which is crucial for determining angular velocity. The challenge lies in deriving the necessary parameters without explicitly using the radius or velocity in their respective equations.

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  • Understanding of gravitational constant (G) and Earth's mass (Me)
  • Familiarity with angular velocity and centripetal force concepts
  • Basic knowledge of circular motion and orbital mechanics
  • Ability to manipulate algebraic equations without direct variable substitution
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Homework Statement



Find Velocity of satellite in GS orbit around Earth but you cannot use r in the solution

And find r of satellite in GS orbit but you cannot use velocity in the solution

Homework Equations



V=Sqroot of G*Me/r, Me being the mass of the Earth but you can't use r from this equation

The Attempt at a Solution


I know at GS the satellite would travel around the Earth in 24 hours and a full revolution around a circle is 2pi, so i can get the angular revolution but then i can't figure out v without using r still
 
Last edited:
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The velocity depends on the radius r. I am not sure how they want you to answer the first part.

As for the second part, you can get out easily by using the centripetal force =mω2r
 

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