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Anti Hydrogen
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I know this is a basic question, but I haven't understood deeply what a inertial frame of reference is, to be more specific, its relation with the first law of motion.
What have you read about inertial frames, and what, specifically, do you not understand about them? The better you can focus your question, the better will be the the responses that you will get. Otherwise you will get responses that lead in many different directions, with no guarantee that any of them will actually help you.Anti Hydrogen said:but I haven't understood deeply what a inertial frame of reference is
An inertial frame of reference is a reference frame in which Newton's laws of motion hold true. This means that an object will remain at rest or continue moving in a straight line at a constant speed unless acted upon by an external force.
An inertial frame of reference is one in which there are no external forces acting on an object, while a non-inertial frame of reference is one in which there are external forces present, such as acceleration or rotation. In a non-inertial frame, Newton's laws of motion do not hold true.
An example of an inertial frame of reference is a person standing on a train that is moving at a constant speed on a straight track. From the person's perspective, they are at rest and objects inside the train will also appear to be at rest. This is because there are no external forces acting on the train, making it an inertial frame of reference.
The theory of relativity states that the laws of physics are the same in all inertial frames of reference. This means that the laws of motion and other physical phenomena will appear the same to observers in different inertial frames, regardless of their relative velocities.
Yes, there are limitations to the concept of inertial frames of reference. In reality, it is difficult to find a truly inertial frame as there are always external forces present, such as gravitational forces. Additionally, the theory of relativity also suggests that there is no absolute reference frame, making it impossible to define a truly inertial frame.