Non-Inertial Frame

A non-inertial frame is a viewpoint or reference point that is accelerating or rotating, meaning it's not moving at a constant velocity. Unlike an inertial frame, where objects follow straight-line paths unless acted upon by forces, in a non-inertial frame, you might observe apparent forces—like the feeling of being pushed back in a car acceleration. These "fictitious" forces arise because the observer's frame of reference is accelerating or changing direction. Examples include a spinning carousel or a car turning a corner; within these frames, extra forces appear that aren't due to physical interactions but result from the acceleration of the frame itself.