1. Not finding help here? Sign up for a free 30min 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!

Longest Straw

  1. Dec 5, 2005 #1
    I recieved a homework problem that I need guidance on where to start.

    What is the longest vertical soda straw you could possibly drink from?

    I do not know where to start on this problem. A small push in the right direction would be greatly appreciated.
  2. jcsd
  3. Dec 6, 2005 #2
    Can you please specify your doubt a bit more. I didn't understand what the question means?
  4. Dec 6, 2005 #3
    Probably something to do with cohesive and adhesive forces? or over coming gravity by the force exerted by the sipping the straw
  5. Dec 6, 2005 #4


    User Avatar
    Science Advisor
    Gold Member

    Think about what's actually happening when you suck.

    You're not so much pulling liquid up the tube as much as allowing atmospheric pressure to push it up.
  6. Dec 6, 2005 #5


    User Avatar
    Science Advisor
    Gold Member

    Oh, and please don't repeat your questions. I've just seen that you had a good answer given just a few hours ago, the first time you asked.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Longest Straw
  1. Longest Straw (Replies: 2)

  2. Straw Sucktion (Replies: 3)

  3. Longest Wavelengths (Replies: 1)