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||attachment:Device01-250.jpg||attachment:Device02-250.jpg||attachment:Device05-250.jpg||attachment:Motor01-250.jpg|| ||attachment:BallString01-250.jpg||attachment:Spool01-250.jpg||attachment:Ball01-250.jpg||attachment:Ball02-250.jpg|| ||attachment:Exacto01-250.jpg||attachment:Exacto03-250.jpg||attachment:Lead01-250.jpg|| |
[:PiraScheme#Mechanics: Table of Mechanics Demonstration] |
[:MEEquipmentList: List of Mechanics Equipment & Supplies] |
[:Demonstrations:Lecture Demonstrations] |
Cut the String, 1D55.15
Topic and Concept:
Motion in Two Dimensions, [:MotionIn2D#CentrifugalEscape: 1D55. Centrifugal Escape]
Location:
Cabinet: [:MechanicsCabinet:Mechanic (ME)]
Bay: [:MechanicsCabinetBayA9:(A9)]
Shelf: #1
attachment:BallCutString03-400.jpg
Abstract:
- Using a homemade apparatus, a ball is put into a circular trajectory. A string connecting the ball to a rotating arm is quickly cut, and the ball flies off tangent to the original trajectory.
Equipment |
Location |
ID Number |
|
|
|
Apparatus w/Spool |
ME, Bay A9, Shelf #1 |
|
Ball |
Found w/Exacto Knife, Spares in ME, Bay A13, Shelf #3 |
|
Exacto Knife w/Adjustable Stand |
ME, Bay A9, Shelf #1 |
|
Lead Block |
Rod and Clamp Cabinet |
|
Important Setup Notes:
This demonstration requires a minimum 24 hour notice.
Setup and Procedure:
- Make a Setup check list.
- ...
Cautions, Warnings, or Safety Concerns:
- List any Warnings....
- Demonstration may require practice.
Discussion:
- Using a homemade apparatus, a ball is put into a circular trajectory with the centripetal force being provided by a rotating rod. A string connecting the ball to the rod is quickly cut, and the ball immediately assumes a linear trajectory tangent to the original trajectory in accordance with Newton's first law.
attachment:Device01-250.jpg |
attachment:Device02-250.jpg |
attachment:Device05-250.jpg |
attachment:Motor01-250.jpg |
attachment:BallString01-250.jpg |
attachment:Spool01-250.jpg |
attachment:Ball01-250.jpg |
attachment:Ball02-250.jpg |
attachment:Exacto01-250.jpg |
attachment:Exacto03-250.jpg |
attachment:Lead01-250.jpg |
Videos:
[https://www.youtube.com/user/LectureDemostrations/videos?view=1 Lecture Demonstration's Youtube Channel]
References:
- List any references
[:Instructional:Home]