the box is sitting on the floor of an elevator. the elevator is accelerating upward. the magnitude of the normal force on the box is

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09-12-2022
Physics

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the box is sitting on the floor of an elevator. the elevator is accelerating upward. the magnitude of the normal force on the box is

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contexto1220 contexto1220 · Answer 1 · 2022-12-19T01:07:47-05:00

When an item is thrown vertically upwards, the acceleration because of gravity stays unchanged and acts in downward direction.

Since the axis became selected such that high quality is the upward direction, acceleration because of gravity is negative.N = mg if the elevator is at relaxation or shifting at consistent velocity. N = mg + ma if the elevator has an upward acceleration. N = mg - ma if the elevator has a downward acceleration.

This is an utility of Newton's 2d regulation to the forces felt in an elevator. If you're accelerating upward you experience heavier, and in case you are accelerating downward you experience lighter. If the elevator cable broke, you'll experience weightless considering the fact that each you and the elevator could be accelerating downward on the identical rate.