So there is nothing wrong with the law of inertia, but there is a problem with the reference frame: if one wants to describe the motion of objects in a reference frame like a plane being shaken up or ...So there is nothing wrong with the law of inertia, but there is a problem with the reference frame: if one wants to describe the motion of objects in a reference frame like a plane being shaken up or a car that is speeding up or slowing down, we need to allow for the fact that objects may move—always relative to that frame—in an apparent violation of the law of inertia.
So there is nothing wrong with the law of inertia, but there is a problem with the reference frame: if I want to describe the motion of objects in a reference frame like a plane being shaken up or a c...So there is nothing wrong with the law of inertia, but there is a problem with the reference frame: if I want to describe the motion of objects in a reference frame like a plane being shaken up or a car that is speeding up or slowing down, I need to allow for the fact that objects may move—always relative to that frame—in an apparent violation of the law of inertia.