Why does Newtonian mechanics include relative motion between inertial frames?

In summary, an absolute frame of reference is a fixed point or system used to measure motion and positions in the universe. It differs from a relative frame of reference which is based on an observer's perspective. It is significant in physics as it provides a stable reference point for precise measurements and calculations. However, there is no universally agreed upon absolute frame of reference and it may not be applicable to all objects in the universe, such as particles at the quantum level.
  • #1
am2010
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I know that in Newtonian mechanics an inertial frame of reference moves relative to absolute space. But why does Newtonian mechanics include the contention that two inertial reference frames move relative to each other?

It seems that if you have an absolute reference frame then there is no need for reference frames that can also move relative to one another.
 
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  • #2
There is no absolute frame in Newtonian Physics. There are infinitely many inertial frames. They are all good choices. Furthermore, Newtonian Physics does provide you with ways of working in non-inertial frames, but fictitious forces must then be included.
 

What is an absolute frame of reference?

An absolute frame of reference is a fixed point or system from which all motion and positions are measured. It is a concept in physics that helps to define the movement and location of objects in the universe.

How is an absolute frame of reference different from a relative frame of reference?

An absolute frame of reference is fixed and does not change, while a relative frame of reference is based on an observer's perspective and can change depending on their location and movement.

What is the significance of an absolute frame of reference in physics?

An absolute frame of reference allows for precise measurements and calculations in physics, as it provides a stable and consistent reference point for studying the movement and interactions of objects.

Is there a universally agreed upon absolute frame of reference?

No, there is no universally agreed upon absolute frame of reference in physics. Different theories and models may use different absolute frames of reference, depending on their specific applications and assumptions.

Can an absolute frame of reference be applied to all objects in the universe?

No, an absolute frame of reference may not be applicable to all objects in the universe. Some objects, such as particles at the quantum level, may not adhere to the traditional laws of physics and may require different frames of reference for accurate analysis.

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