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Re: MOMENT OF INERTIA



On Sat, 19 Dec 1998, Jerome Epstein wrote:

No. Sorry. You cannot move your center of mass without a force from
outside the body. But you could lean forward. All that would happen is
that your legs would go backward. Ask an astronaut.

If you have leaned forward, you have moved your center of mass. If you
were able to rotate your body without an outside force, you would be
violating conservation of angular momentum. Ask any astronaut!

Mervin Koehlinger
Physics Instructor
Concordia Lutheran High School
Fort Wayne, Indiana