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A 74.0 kilogram man stands on a scale in an elevator. Obtain the apparent weight in each of the following situations?
(a) When the elevator is accelerating upward with an acceleration of 1.8m/s.
___N
(b) When the elevator is moving upward at a constant speed.
(c) When the elevator is accelerating downward with an acceleration of 1.40 m/s.
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