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      Question

      A person weighing 80 kg is standing in an elevator that

      is accelerating downward at 3 m/s². What is the apparent weight? (Take g = 10 m/ s²)
      A 560 N Correct Answer Incorrect Answer
      B 640 N Correct Answer Incorrect Answer
      C 720 N Correct Answer Incorrect Answer
      D 800 N Correct Answer Incorrect Answer

      Solution

      Apparent weight: W′= m(g−a)=80(10−3)=80×7=560N

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