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An inertial frame of reference = constant vel. non inertial frame of reference = acceleration
Shifting the frame of reference refers to
If the object is falling down, it is accelerating. "Inertial frames of reference" do not include acceleration, so the falling object can't be considered an inertial frame of reference, according to the Special Theory of Relativity. However, the General Theory or Relativity explores additional complications due to gravity. In any case, if you wish, you can use the object accelerating downward as a reference frame (just don't call it "inertial"); in this case, obviously the room is accelerating upward, compared to the falling object. It all depends what object you choose as your reference frame.
Earth is the most common frame of reference.
Frame of reference can be used to describe acceleration.
Advantage of reference frame theory
That is Einstein's theory of relativity.
Special relativity is Albert Einstein's theory that there is no preferred frame of reference for physics, and all measurements depend upon the frame of reference from which they are made.
It says that the speed of light in a vacuum measured in any inertial frame of reference is equivalent to the speed of light in a vacuum measured in any other inertial frame of reference.
An inertial frame of reference = constant vel. non inertial frame of reference = acceleration
Frame Of Reference. which means a framework that is used for the observation and mathematical description
Shifting the frame of reference refers to
If the object is falling down, it is accelerating. "Inertial frames of reference" do not include acceleration, so the falling object can't be considered an inertial frame of reference, according to the Special Theory of Relativity. However, the General Theory or Relativity explores additional complications due to gravity. In any case, if you wish, you can use the object accelerating downward as a reference frame (just don't call it "inertial"); in this case, obviously the room is accelerating upward, compared to the falling object. It all depends what object you choose as your reference frame.
Earth is the most common frame of reference.
Frame of reference can be used to describe acceleration.
Frame of reference can be used to describe acceleration.
Then it is possible to calculate their lifetime in our frame of reference.