Rigid body question ...

jag_oes · 2001-12-22T11:07:53

Here is a question that I am sure was probably answered in the heaps of documents I have read but just didn't catch it. I am mainly concerned about the rotation of a rigid body so I am going to say that the body is just fixed with its center of mass at (0,0,0). If a force, F(x,y,z), is applied to a point p(x,y,z) then I can find the torque with this: t = p x F The toque is a vector so that must be the axis that the body rotates around (correct so far?). I am also assuming that the norm of the cross product must be the amount of torque that is being applied to rotate the body around the axis. But, to then find the angular acceleration of the body I need to know the moment of inertia about that axis ... this is where my "math loving" and "physics hating" halves of my brain collide. Are my assumptions correct so far? How does one calculate the moment of inertia about an axis? Thanks Edited by - jag_oes on December 17, 2001 5:34:44 PM

Math and Physics Programming

Started by jag_oes December 10, 2001 10:01 PM

9 comments, last by jag_oes 22 years, 3 months ago

jag_oes

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December 22, 2001 11:07 AM

Haha, sounds about right.

However, I did figure out what was wrong with my derivation and I have the correct equations now ... so disregard everything and thanks ...

Rigid body question ...

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Rigid body question ...

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