1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Henry gets into an elevator on the 50th floor

  1. Oct 1, 2013 #1
    Henry gets into an elevator on the 50th floor of a building and it begins moving at t=0.00 s. His apparent weight is shown over the next 36.0s


    What is Henry's mass if his maximum apparent weight within the elevator is 900.0N?

    so shouldn't it just be:
    w = mg
    m = w/g
    = 900/9.8
    = 91.84 kg

    but I keep getting the answer wrong.
     

    Attached Files:

  2. jcsd
  3. Oct 1, 2013 #2

    gneill

    User Avatar

    Staff: Mentor

    Can you identify on your graph where the maximum apparent weight occurs? How about his minimum apparent weight?

    attachment.php?attachmentid=62357&stc=1&d=1380638363.gif

    What do you suppose is happening with the motion of the elevator to cause these readings? Where would you expect to see his normal apparent weight?
     

    Attached Files:

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted