Rising_Suns
'Christ's desolate heart is in need of comfort'
Originally posted by ardipithecus
Much beter though it would be beter to use:
a=GM/r^2
since "g" is aften used for acceleration due to gravity which is not what you want. But that is a nitpick since any symbol can be used for any variable so long as one is consistent.
yeah, i was being lazy and typed a lower case "g" instead of "G"..so in this case, g=G
In case anyone is interested, Rising_Sun's equation can be obtained by substituting f=ma into Newton's equation for gravity which I gave in a previous post. One of the m's cancels out (the one we interpret as the mass of the Earth).
that's exactly how it's done.
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