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Circular Motion - Finding angular velocity from mass and radius Watch

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    The question is: The Earth has a mass of 5.98x10^24 and is 1.5x10^8 km from the Sun. Calculate the angular velocity of the Earth.

    Which formula(s) am I supposed to use to work out the angular velocity?
    Many thanks for your help
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    How long does it take the Earth to complete one orbit of the sun? One orbit is 2*pi radians.

    Convert this into radians/second and you have your angular velocity in SI units.

    Mass, distance, red herrings!
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    (Original post by mik1a)
    How long does it take the Earth to complete one orbit of the sun? One orbit is 2*pi radians.

    Convert this into radians/second and you have your angular velocity in SI units.

    Mass, distance, red herrings!
    I just realised, it's common sense! 365.25 days to rotate the sun 😂! I should've known!! I feel so stupid now! Thanks for your help!
 
 
 
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