A non-inertial frame of reference is that which
Correct answer: D. Moves with some acceleration.
- A. Is always at rest.
- B. Has zero acceleration.
- C. Moves with uniform velocity.
- D. Moves with some acceleration.
Explanation
A non-inertial frame of reference is one that experiences acceleration. This means that the frame is either speeding up, slowing down, or changing direction, and is not in a state of constant velocity or rest. In contrast, inertial frames of reference move with a constant velocity or are at rest, experiencing no acceleration. Thus, the correct answer is that a non-inertial frame of reference moves with some acceleration, as stated in Option D. Options A, B, and C describe conditions of rest, zero acceleration, and uniform motion, respectively, all of which are characteristics of inertial frames, not non-inertial ones.
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