start rigid body

موضوع: start rigid body الجمعة ماي 16, 2008 5:27 pm

Rigid body

From Wikipedia, the free encyclopedia

• Ten things you may not know about Wikipedia •

Jump to: navigation, search
[/url][url=http://en.wikipedia.org/wiki/Image:Flight_dynamics_with_text.png]
The position of a rigid body is determined by the position of its center of mass and by its orientation (at least six parameters in total).

In physics, a rigid body is an idealization of a solid body of finite size in which deformation is neglected. In other words, the distance between any two given points of a rigid body remains constant in time regardless of external forces exerted on it. In classical mechanics a rigid body is usually considered as a continuous mass distribution, while in quantum mechanics a rigid body is usually thought of as a collection of point masses. For instance, in quantum mechanics molecules (consisting of the point masses: electrons and nuclei) are often seen as rigid bodies (see classification of molecules as rigid rotors).

farao

_________________
واخر دعوانا أن الحمد لله رب العالمين

موضوع: رد: start rigid body السبت ماي 17, 2008 12:05 am

good work shady
_________________
وما يلفظ من قول إلا لديه رقيب عتيد

موضوع: رد: start rigid body السبت ماي 17, 2008 4:29 pm

جاااااااااامد يا شادي علي اساس انك بتذاكر rigid دلوقتي
انا بهزر والف شكر يا شادي علي مجهوداتك التحفه دائما

_________________