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A person of mass m is standing on a scale in an elevator that is accelerating downward with an acceleration of magnitude a. Which of the following is a correct expression for the normal force exerted on the person by the scale? (A) mg (B) m(g−a) (C) m(g+a) (D) ma

A person of mass m is standing on a scale in an elevator that is accelerating downward with an acceleration of magnitude a. Which of the following is a correct expression for the normal force exerted on the person by the scale? (A) mg (B) m(g−a) (C) m(g+a) (D) ma

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A person of mass m is standing on a scale in an elevator that is accelerating downward with an acceleration of magnitude a . Which of the following is a correct expression for the normal force exerted on the person by the scale? (A) m g (B) m ( g − a ) (C) m ( g + a ) (D) m a

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