Date: Thu Oct 29 23:19:27 2009 ** **Back to Contents ** ------------------------------------------------------------------------ **

Author: Paul Lulai

Subject: Re: centripetal acceleration and friction demonstration

Post:

This is a multi-part message in MIME format.

------_=_NextPart_001_01CA590E.E796ACC2
Content-Type: text/plain;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

I attach a .5"x4"x6' (foot) board onto a record player. rotate it. I =
put pennies at 10cm - 20 cm increments out from the center. kids must =
determine which stay (not just inner). usually works. board is =
warping. might be time to go bigger since I need a new board anyway. I =
know some folks have mini merry-go-rounds from wheels found at junk =
yards. =20
=20
sorry. should have pooled this with the last post. i'll try to be more =
efficient next time. =20
=20
Paul Lulai
Physics Teacher
US First Robotics Teacher
..:: Medtronic - St Anthony RoboHuskie 2574 ::..
3303 33rd Ave NE
St. Anthony Village Senior High
Saint Anthony Village, MN 55418
(w) 612-706-1144
(fax) 612-706-1020
plulai@stanthony.k12.mn.us
http://www.robohuskie.com =20
http://prettygoodphysics.wikispaces.com =
=20
http://sites.google.com/site/go4st8physics/ =
=
=20
http://www.stanthony.k12.mn.us/hsscience/ =
=20
=20
=20

________________________________

From: tap-l-owner@lists.ncsu.edu on behalf of Andrew Morrison
Sent: Thu 10/29/2009 8:22 PM
To: tap-l@lists.ncsu.edu
Subject: Re: [tap-l] centripetal acceleration and friction demonstration



Ah...center of moment...right. Yeah, I think stacking a few pennies
and gluing together might do the trick.

I'm starting to think this might be a demo that really isn't done all
that often.

On Thu, Oct 29, 2009 at 6:29 PM, Bernard Cleyet
wrote:
> I'll leap in where others have refused to tread -- I think you've got =
it;
> having the moments at the same radii is most important.
>
> bc not an angel
>
> p.s. Note: The centre of mass is not the same as the center of =
moment.
> Would using varying numbers of same coins stacked (glued together) =
solve
> this?
>
>
>
> On 2009, Oct 29, , at 15:23, Andrew Morrison wrote:
>
>> I wanted to do a demonstration in class where two objects of =
different
>> mass are placed on a rotating disk at the same radius to show whether
>> one will fall off before the other or if they fall off at the same
>> time.
>>
>> After multiple trials, first with a dime and a quarter then with =
other
>> various objects, I am pretty sure I can convince my class that any of
>> the three possibilities is correct. Does anyone have a method or
>> suggestions of techniques for consistent and accurate ways of
>> repeating this demonstration?
>>
>> It seems to me that the two objects would need to have the same
>> material in contact with the surface, to have the same coefficient of
>> friction, and would need to have the same dimensions, so the center =
of
>> mass of each is in the same spot. Is that right, or am I =
overthinking
>> this demo?
>>
>> Thanks!
>>
>> Andrew
>>
>
>




------_=_NextPart_001_01CA590E.E796ACC2
Content-Type: application/ms-tnef;
name="winmail.dat"
Content-Transfer-Encoding: base64
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------_=_NextPart_001_01CA590E.E796ACC2--

From tap-l-owner@lists.ncsu.edu Thu Oct 29 23:19:27 2009
**

**

Back