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!

Spring Scale Help

  1. Mar 11, 2010 #1
    If you stand on a bathroom scale, the spring inside the scale compresses 0.50 mm, and it tells you your weight is 740 N. Now if you jump on the scale from a height of 1.2 m, what does the scale read at its peak?


    I'm guessing you use 1/2kx^2 but otherwise, I'm not sure.
     
  2. jcsd
  3. Mar 11, 2010 #2

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi fender5791! Welcome to PF! :smile:

    (try using the X2 tag just above the Reply box :wink:)
    ok, so what is the value of k? :smile:

    (and yes, you can use 1/2 kx2 later)
     
  4. Mar 11, 2010 #3
    So would k be (740N)/(.0005m) = 1.48x10^6 N/m?
     
  5. Mar 11, 2010 #4

    tiny-tim

    User Avatar
    Science Advisor
    Homework Helper

    Yup! :biggrin:

    Now use KE + PE = constant.​
     
  6. Mar 11, 2010 #5
    Got it, thanks.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Spring Scale Help
  1. Spring scale (Replies: 8)

  2. A banana spring scale! (Replies: 8)

Loading...