9 ms·

that was centrifugal, not gravitational force

• verroq 15y ago
  Centripetal. Centrifugal force is imaginary.
  • deleted 15y ago
    [deleted]
  • ajarmoniuk 15y ago
    Centrifugal is imaginary in a non-inertial reference frame (as the case is here), but is a "real" force otherwise. There was a discussion on this exact subject recently on Reddit (/r/askscience) which might be interesting: http://www.reddit.com/r/askscience/comments/m2b1t/how_fast_could_a_rock_planet_spin_before/c2xioo7 http://www.reddit.com/r/askscience/comments/m2b1t/how_fast_c... and the entry on Wikipedia: http://en.wikipedia.org/wiki/Centrifugal_force http://en.wikipedia.org/wiki/Centrifugal_force