1. Nov 24, 2011 #1

   doubled

   

   The problem statement is "each of the four uniform links has a mass m. determine the horizontal force P required to hold them in place in the vertical plane as shown." I attached the solution, but I don't get when a force causes a +/- virtual work.

    

   Attached Files:

   • 

     Untitled.png

     File size:

     17.8 KB

     Views:

     172

   doubled, Nov 24, 2011
2. 
   Phys.org - latest science and technology news stories on Phys.org

   • • The changing shape of DNA
   • • Nanoparticles carrying two drugs can cross the blood-brain barrier and shrink glioblastoma tumors
   • • Dusty rainfall records reveal new understanding of Earth's long-term climate
3. Nov 24, 2011 #2

   TaxOnFear

   

   Erm, I'm not sure how work would come into this problem? What exactly are you asking?

    

   TaxOnFear, Nov 24, 2011

• Log in with Facebook
• Log in with Twitter

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in