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When riding a fast elevator upward, the sensation of increased weight is due to the elevator's acceleration, which adds to the force of gravity acting on your body. According to the equivalence principle, this experience is similar to being in a gravitational field; the acceleration mimics an increased gravitational pull. Conversely, as the elevator slows down at the end of the trip, you feel lighter because the upward acceleration decreases, akin to being in a reduced gravitational field. This demonstrates how acceleration and gravity can produce similar effects on perceived weight.

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1w ago

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