Jump to content


  • Content Count

  • Joined

  • Last visited

  • Days Won


Everything posted by willorn

  1. willorn

    Momentum in Billiards

    Just because you analyzed billiards physics in some way you get five stars. I would say that the orientation of the six billiard balls if they were grouped would usually create different resulting velocities from the initial momentum of the cue ball.
  2. willorn

    Impulse and Momentum

    So I read both blogs that have to do with follow through increasing momentum so far, and as an avid badminton player (don't hate on my whiteness) I'm starting to wonder how professionals reach 100 mph speeds with shuttlecocks that have a great amount of drag and if the racket only comes into contact with the shuttlecock a short time.
  3. Neat. we should derive the plaid-Impulse equation.
  4. I'm hoping this is the right place to post for Physics C Problems. I thought I heard that people were confused by the billiards web assign so I thought I'd weigh in. To me it seems like the velocities of the cue ball and the 8-ball have been switched on the webassign, but maybe I'm crazy. Also, I only know from experience that perfectly spherical billiard balls that collide perfectly tangentially ricochet off each other at complimentary angles, but the mathematical explanation in the answer packet leaves a bit to be explained for me. Any clarification would be much appreciated!
  5. It seems to me that when air resistance comes into play for falling objects, the shape of the object will play an important factor. An object (such as a coffee filter) with lots of surface area in opposition to the air below it will have a different resistance force on it than a straight pencil falling in the same surroundings.

Terms of Use

The pages of APlusPhysics.com, Physics in Action podcasts, and other online media at this site are made available as a service to physics students, instructors, and others. Their use is encouraged and is free of charge. Teachers who wish to use materials either in a classroom demonstration format or as part of an interactive activity/lesson are granted permission (and encouraged) to do so. Linking to information on this site is allowed and encouraged, but content from APlusPhysics may not be made available elsewhere on the Internet without the author's written permission.

Copyright Notice

APlusPhysics.com, Silly Beagle Productions and Physics In Action materials are copyright protected and the author restricts their use to online usage through a live internet connection. Any downloading of files to other storage devices (hard drives, web servers, school servers, CDs, etc.) with the exception of Physics In Action podcast episodes is prohibited. The use of images, text and animations in other projects (including non-profit endeavors) is also prohibited. Requests for permission to use such material on other projects may be submitted in writing to info@aplusphysics.com. Licensing of the content of APlusPhysics.com for other uses may be considered in the future.

  • Create New...