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Topic: Physics problem --ball rolling down an inclined plane
Replies: 8   Last Post: Dec 26, 2012 10:25 PM

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kirby urner

Posts: 1,916
Registered: 11/29/05
Re: Physics problem --ball rolling down an inclined plane
Posted: Dec 25, 2012 1:48 PM
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att1.html (1.7 K)

Random treatment of the topic:

http://www.batesville.k12.in.us/physics/phynet/mechanics/RotMechanics/fall_slide_roll.htm
(formulas)

http://youtu.be/7mxV6f5nuJY (short animation)

Compare:

Lectures on Rolling = Translation + Rotation (set up energy conservation
approach)

http://youtu.be/UOJsuXMtwqA (white board)

http://youtu.be/EkkJw1LiDTE (slides)

D'Alembert's Principle in particular:

http://youtu.be/PlbgIGH4kmE (queued, might review it in a followup)

Kirby

On Thu, Dec 20, 2012 at 1:32 PM, Peter Duveen <pduveen@yahoo.com> wrote:

> High school physics students are taught so-called Newtonian mechanics, but
> cannot solve the simple problem of a ball rolling down an inclined plane.
> Rigid bodies are outside the purview of Newtonian mechanics, as Newton
> himself seems to have admitted in The Principia. However, the application
> of D'Alembert's Principle yields a solution to this simple problem. The
> problem becomes particularly simple when worked out for a thin cylinder or
> ring rolling down an inclined plane. Should high school students be
> introduced to D'Alembert's Principle?
>




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