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

Homework Help: Pendulum Final Project (Gr.10) HELP!

  1. Jan 23, 2006 #1
    Does this make any sense to anyone? please email me! jacileafsfan24@aol.com
    "If the shape of the bob is wider, then there will be more air resistance so it will swing fewer times in a minute because the gravity is still the same, but the air resistance will force it to slow down."
    Any help would be appreciated!
  2. jcsd
  3. Jan 23, 2006 #2

    Tom Mattson

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Yes, it makes sense. The air surrounding the pendulum exerts a drag force on it that opposes its motion. For details check out the following site.


    Use the bubble maps to take the following path:

    Mechanics-->Fluids-->Fluid Friction

    Then click on "Fluid friction concepts". You'll be interested in fluid friction in gases, since air is a gas.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook