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A 72.0-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is

(a) accelerating upward with an acceleration of 1.80 m/s2,
(b) moving upward at a constant speed, and
(c) accelerating downward with an acceleration of 1.30 m/s2?
I just need to know how to do these problems

  • Physics -

    W= mg +- mg + when going up, - when down.

  • Physics correction -

    W= mg +- ma + when a going up, - when down.

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