nˈɑːnsˈɛntɹəl fˈoːɹsᵻz ˈaɪ.ˈiː., ðoʊz ðæt dᵻpˈɛnd ɔnðɪ ˈæŋɡjʊlɚ vˈɛɹɪəbəlz æz wˈɛl æz ðə ɹˈeɪdɪəs ɑːɹ ɪɡnˈoːɹd hˈɪɹ, sˈɪns ðeɪ duːnˌɑːt pɹədˈuːs sˈɜːkjʊlɚɹ ˈɔːɹbɪts ɪn dʒˈɛnɚɹəl.
Non-central forces (i.e., those that depend on the angular variables as well as the radius) are ignored here, since they do not produce circular orbits in general.