**Conservation of Angular Momentum**
(chapter 4)
Angular Momentum is defined as the __moment__ of the Linear Momentum __about__ some spatial __reference point__. Thus, it is the vector cross product with the linear momentum.
angular momentum = linear momentum
Like linear momentum, angular momentum is conserved.
Thus, like conservation of linear momentum, we have the same spatial and time derivatives; except they operate on the angular momentum. Recall __conservation of linear momentum__ for a differential system as shown below:
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