Jump to content

Blog awalts

Sign in to follow this  
  • entries
    11
  • comments
    16
  • views
    1,755

A Challenge for anyone brave enough to try...

Sign in to follow this  
Guest

237 views

Here's a complex physics problem for you, with a real world application. About a year ago, my mom was in a car accident that prevents her still from playing the harp as her profession. In order to return to work, however, her physical therapist needs to know how much force it takes to pull a harp string (sufficient enough force to produce sound) so that he can tell if she is ready to exert that amount of force regularly. One might think that this would be a fairly simple SHM problem, but it's not quite that easy. Here are the conditions:

Each string is a different length, and thus each would require a different amount of force to pull.

There are three different types of strings, and each type is made up of a different material

The harder each string is pulled, the louder the sound, so the force would have to be calculated back from the amount of sound produced, and then pumped through SHM (I think...)

To give you an idea, the combined tension of the all strings on the soundboard is approximately 2.5 TONS. We're dealing with some large forces here. What would you do to solve this problem, and what information would you need? A very real world application of everything we've learned. The challenge is out there. Now the task is solving it.

Sign in to follow this  


1 Comment


Recommended Comments

Guest
Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

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...