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Which result follows from the equivalence principle applied inside a windowless accelerating room?

A)Gravity and room acceleration are interconvertible
B)Inertial mass and position remain distinguishable
C)Room rotation rate exactly equals gravity
D)Frame dragging cancels room acceleration vector

💡 Explanation

Gravity and constant acceleration are equivalent by the equivalence principle; therefore, an observer within the accelerating windowless room cannot distinguish between gravity and the room's acceleration, rather than being able to detect frame rotation because spacetime curvature varies.

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