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5.7. The basic equation of the dynamics of rotational motion

Lecture



According to equation (5.8), Newton's second law for rotational motion

  5.7.  The basic equation of the dynamics of rotational motion

By definition, angular acceleration   5.7.  The basic equation of the dynamics of rotational motion and then this equation can be

rewrite as follows

  5.7.  The basic equation of the dynamics of rotational motion

in view of (5.9)

  5.7.  The basic equation of the dynamics of rotational motion

or

  5.7.  The basic equation of the dynamics of rotational motion (5.10)

This expression is called the basic equation of the dynamics of rotational motion and is formulated as follows: the change in the angular momentum of a rigid body   5.7.  The basic equation of the dynamics of rotational motion equal to moment momentum   5.7.  The basic equation of the dynamics of rotational motion all external forces acting on this body.


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Physical foundations of mechanics

Terms: Physical foundations of mechanics