Sunday, November 18, 2018

newtonian mechanics - How does one determine an inertial frame?


How does one determine whether one is in an inertial frame?


An inertial frame is one on which a particle with no force on it travels in a straight line.


But how does one determine that no forces are acting on it? After all, one might declare a force is acting on a particle because it is deviating from a straight line.




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