Talk:Mechanical equilibrium

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A particle in mechanical equilibrium is undergoing neither linear nor rotational acceleration; however it could be translating or rotating at a constant velocity.

i agree that a constant linear velocity can be there, but is'nt a constant rotational velocity impossible? the scalar speed might stay thesame, however the direction of the speed changes. to achieve this change of direction is nescesary.

am i making some grievous error here? or is the article indeed wrong?

62.45.224.78 (talk) 22:03, 18 February 2008 (UTC)

I introduced "rigid body", in mechanical equilibrium when the sum of all forces on all particles of the system is zero, and also the sum of all torques on all particles of the system is zero.--Patrick (talk) 09:28, 19 February 2008 (UTC)