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Homework Help: Elevator Problem

  1. Oct 31, 2008 #1
    I'm having trouble with this problem:

    A 80.0 kg person stands on a scale in an elevator.
    (e) What does it read when the elevator is accelerating downward at 3.5 m/s2? In KG

    I set it up as EF = ma , but it doesn't work out...

    EF = MA
  2. jcsd
  3. Oct 31, 2008 #2
    How did you get on with parts (a) to (d) of the question? It would probably be useful to show some working and thought processes for those parts of the question, then people will have a better idea of how to help.
  4. Oct 31, 2008 #3
    When an elevator goes downwards, you feel lighter. Note that all the person's weight normally comes from gravity acceleration. Find the modified acceleration of the elevator and gravity together, then compare that with just gravity.
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