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Originally Posted by vinaur
How does mass affect the orbit??? Aren't gravity and centrifugal force the only forces acting on the planet (on a scale that matters anyway)? So m_p*v^2/R=G*m_s*m_p/R^2. You can cancel out the m_p (mass of the planet), which makes the equation independent of the planets mass. v^2=G*m_s/R. |
Surely you can see the connection between mass and gravitation? The mass of objects is crucial in how they orbit.