Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Grabber - statics example

  1. Feb 10, 2017 #1

    We should get the length x , when the grabber can just hold the box.


    I made two moment equations:



    Then I put them together into one equation: mathtex.gif

    And from that equation I found out x: mathtex.gif

    Unfortunately the result seems to be wrong. Can you please help me? Where I made the mistake?
  2. jcsd
  3. Feb 11, 2017 #2
    i think the frictional force balance the wight of the box.we have to give the normal force on the box that give rise to the friction by giving a torque to the grabber
  4. Feb 11, 2017 #3
    I finally got it. Here is the solution.

  5. Feb 12, 2017 #4
    Yes,that is the correct answer:smile:
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted