1F20.10 - Inertia Balls


Final Setup
Final Setup



Code: 1F20.10


Demo Title: Inertia Balls


Subject: Inertia of Rest


Description:
Two identical heavy balls on stings pulled at different speeds; If the rod is pulled down slowly, the top thread will break first. If it is pulled down quickly, the bottom thread will break first. When you pull the string slowly the top string feels the weight of the ball, but when you pull fast the balls inertia doesn't allow the force to translate up to the stop string, breaking the bottom string.


Procedure:

  • pull the longest rod attached to the blue taped Ball downwards slowly
  • Show the students that the string breaks
  • Now Pull the short rod attached to the Yellow Taped Ball Fast
  • Show the students how the string is still intact but the bottom one isn't
  • Explain how pulling slowly builds tension therefore the top string would eventually breaks however, when the you pull fast and apply sudden force the bottom one breaks instead because there gets no time for the tension to apply to the top string


Disclaimer: These demonstrations are provided only for illustrative use by persons affiliated with Rutgers University and only under the direction of a trained instructor or physicist. Rutgers University is not responsible for any demonstrations performed by those using their own or others equipment, or who choose to use this reference material for their own purpose. The demonstrations included here are within the public domain and can be found in materials contained in libraries, bookstores, and through electronic sources. Performing all or any portion of any of these demonstrations, with or without revisions not depicted here, entails inherent risks. These risks include, without limitation, bodily injury (and possibly death), risks to health that may be temporary or permanent and that may exacerbate a pre-existing medical condition, and property loss or damage. Anyone performing any part of these demonstrations, even with revisions, knowingly and voluntarily assumes all risks associated with them.


Social Media


FB f Logo blue 29

Contact Us


firstlight2 footer Physics & Astronomy
Rutgers, The State University
   of New Jersey
136 Frelinghuysen Road
Piscataway, NJ 08854-8019
(848) 445-8781
npamula@physics.rutgers.edu


Copyright 2024, Rutgers, The State University of New Jersey. All rights reserved.
Rutgers is an equal access/equal opportunity institution. Individuals with disabilities are encouraged to direct suggestions, comments, or complaints concerning any accessibility issues with Rutgers web sites to: accessibility@rutgers.edu or complete the Report Accessibility Barrier or Provide Feedback Form .