- #1
MarekS
- 34
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The Earth is an approximately inertial reference frame since it's acceleration with respect to the stars is very small. But if a group of stars is accelerating with respect to another group of stars which group is the inertial frame? Or thinking on an even larger scale, if a universe is accelerating with respect to another universe which one is the inertial and the non-inertial frame? Is there an absolute way to determine this?
I know that an inertial frame is one in which the law of inertia holds. It holds on Earth. Will it not hold in a universe that is accelerating with respect to ours?
I know that an inertial frame is one in which the law of inertia holds. It holds on Earth. Will it not hold in a universe that is accelerating with respect to ours?