From the perspective of sun, is the moon orbiting the earth considered a single inertial frame or are moon and earth separate inertial frames?
Or am I missing something completely fundamental?
From the perspective of sun, is the moon orbiting the earth considered a single inertial frame or are moon and earth separate inertial frames?
Or am I missing something completely fundamental?
Any frame of references where there are fictitious forces in play is not an inertial frame. and i don't understand by what you mean "...is it a separate entity?" and no, the earth+moon frame cannot be considered an inertial frame because they are moving about the sun. Can you please rephrase your question?