Table Top Physics - angular momentum

Table Top Physics - Angular Momentum - Reverse Gears

We can apply a torque to give momentum 'L' to the blue flywheel. Assume no friction so no momentum is transferred to the baseplate.

no gears

Now we do the same, but though reversing gears (again no friction), we supply angular momentum 'L' and the flywheel gains -L momentum. Therefore to conserve angular momentum, 2*L must be transferred to the baseplate.

reverse gears

Can we show the magnitude of the angular momentum transferred to the baseplate by calculating the forces instead of using the conservation law?

Does the offset in axies affect the result?

Further Information

These pages contain examples to illustrate the principles involved, for an discussion of the theory about angular momentum see this page.

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see also:

Correspondence about this page

Book Shop - Further reading.

Where I can, I have put links to Amazon for books that are relevant to the subject, click on the appropriate country flag to get more details of the book or to buy it from them.

Game Design for Teens.

Commercial Software Shop

Where I can, I have put links to Amazon for commercial software, not directly related to the software project, but related to the subject being discussed, click on the appropriate country flag to get more details of the software or to buy it from them.

Dark Basic Professional Edition - It is better to get this professional edition

This is a version of basic designed for building games, for example to rotate a cube you might do the following:
make object cube 1,100
for x=1 to 360
rotate object 1,x,x,0
next x

Game Programming with Darkbasic - book for above software

Discussion about using Darkbasic for physics simulation

Can you help?

Please send me any improvements to here. I would appreciate ideas to make the pages more useful including error correction, ideas for new pages, improvements to wording. It helps if you quote the full URL of the page.

progam

I am working on a project which uses these principles, if you would like to help me with this you are welcome to join in, here:

http://sourceforge.net/projects/mjbworld/

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