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!

How does one calculate the velocity and strengh of a whirlpool?

  1. Mar 13, 2013 #1
    For example the earthquake in Japan awhile back had the strength to capture a boat within it's pull. Yet the whirlpool created when someone pulls a plug on the bathtub is hardly any pull whatsoever. This may be a simplistic way of putting it, and i know it has to do with the amount of water and current. How would something like this be put into a mathematical equation too.

  2. jcsd
  3. Mar 13, 2013 #2


    User Avatar
    Science Advisor
    Gold Member
    2017 Award

    thats purely a question of scale. The small whirlpool in a plughole in the tub will still pull in objects of a relative smaller size

  4. Mar 14, 2013 #3


    User Avatar
    Gold Member

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