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A person weighting 400N stands on spring...

A person weighting 400N stands on spring scales in an elevator that is moving downward with constant speed of 4m/s the brakes suddenly grab, bringing the elevator to a stop in 1.8 s. Describe the scale readings from just before the brakes grab until after the elevator is at rest.

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The correct Answer is:
[400 N, 488.89 N, 400 N]
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PHYSICS GALAXY - ASHISH ARORA-NEWTONS LAWS OF MOTION-Unsolved Numerical Problem
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