An inertial frame of reference has a constant velocity. This means that there is no acceleration taking place. Therefore, the inertial frame of reference is defined to be in a coordinate system where there is no acceleration.
Following are the ways to describe an inertial frame:
- An inertial frame of reference has a frame of reference with constant velocity.
- It is a non-accelerating frame of reference.
- It is a frame of reference in which the law of inertia holds good.
- It is a frame of reference in which Newton’s laws of motion hold good.
- There are no fictitious forces involved in the inertial frame of reference.
