What is the orbital velocity in km/s and period in hours of a ring particle at the outer edge of Saturn's A ring

The orbital velocity

The period is  

Explanation:

Generally centripetal force acting ring particle is equal to the gravitational  force between the ring particle and the planet , this is mathematically represented as

=>    

Here G is the gravitational constant with value  

         is the mass of with value  

        r is the is distance from the center of the  to the  outer edge of the  A ring

i.e r = R  + D  

Here R  is the radius of the planet   with value  

         D  is the distance from the  equator to the outer edge of the  A ring with value  

So  

=>    

So

    =>    

    =>    

Generally the orbital velocity is mathematically represented as

=>    

=>    

Generally the period is mathematically represented as

=>

=>

The orbital velocity

The period is  

Explanation:

Generally centripetal force acting ring particle is equal to the gravitational  force between the ring particle and the , this is mathematically represented as

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