Changes

'''Conservation of angular momentum''', fundamental concept of physics along with the conversations of mass and energy as well as [[momentum (physics)|linear momentum]], and defined as mass multiplied by velocity of an object. It further states that the amount of angular momentum remains constant unless changed through an action of external forces as described by [[Isaac Newton|Newton's]] [laws of motion].

'''Conservation of angular momentum''', fundamental concept of physics along with the conversations of mass and energy as well as [[momentum (physics)|linear momentum]], and defined as mass multiplied by velocity of an object. It further states that the amount of angular momentum remains constant unless changed through an action of external forces as described by [[Isaac Newton|Newton's]] laws of motion.

The angular momentum of a point mass about a point is defined as <math>\vec H = \vec r \times \vec p</math> where <math>\vec{r}</math> is the position [[vector quantity|vector]] of the point mass with respect to the point of reference and <math>\vec{p}</math> is the [[momentum (physics)|linear momentum]] vector of the point mass.

The angular momentum of a point mass about a point is defined as <math>\vec H = \vec r \times \vec p</math> where <math>\vec{r}</math> is the position [[vector quantity|vector]] of the point mass with respect to the point of reference and <math>\vec{p}</math> is the [[momentum (physics)|linear momentum]] vector of the point mass.