Inertial frame of reference

In physics, an object has inertial motion if no external forces are being applied to it, famously stated as Newton's first law of motion. When such an object?s state of motion is extrapolated over a region of space to take in all other possible objects in the region with the same state of motion, and these are used to define a common coordinate system, this system is referred to as a frame. Hence, a coordinate system defined by the inertial motion of objects with a common direction and speed is called an inertial frame.

Related Topics:
Physics - Newton's first law of motion - Coordinate system

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