Angular Momentum of a Rigid Body
Angular momentum is the rotational analog of linear momentum. For a rigid body, it equals the cross-product of the particle's position vector (relative to some origin) and its momentum vector.
Angular momentum equals the moment of inertia times the angular velocity.
Formula
![Copy to Clipboard QuantityVariable["L", "AngularMomentum"] == QuantityVariable["I", "MomentOfInertia"]*QuantityVariable["ω", "AngularVelocity"]](https://www.wolframcloud.com/objects/resourcesystem/marketplacestorage/resources/2f4/2f4630f5-10fc-4955-8708-9278a285d765/Webpage/FormulaImage.png)
| symbol | description | physical quantity | 
|---|---|---|
| L | angular momentum | "AngularMomentum" | 
| I | moment of inertia | "MomentOfInertia" | 
| ω | angular velocity | "AngularVelocity" | 
Forms
Examples
Get the resource:
| In[1]:= | ![ResourceObject["Angular Momentum of a Rigid Body"]](images/2f4/2f4630f5-10fc-4955-8708-9278a285d765-io-1-i.en.gif) | 
| Out[1]= |  | 
Get the formula:
| In[2]:= | ![FormulaData[ResourceObject["Angular Momentum of a Rigid Body"]]](images/2f4/2f4630f5-10fc-4955-8708-9278a285d765-io-2-i.en.gif) | 
| Out[2]= |  | 
Use some values:
| In[3]:= | ![FormulaData[
 ResourceObject[
  "Angular Momentum of a Rigid Body"], {QuantityVariable[
   "\[Omega]","AngularVelocity"] -> 
   Quantity[1, ("Radians")/("Seconds")], 
  QuantityVariable["I","MomentOfInertia"] -> 
   Quantity[1, "Kilograms" ("Meters")^2]}]](images/2f4/2f4630f5-10fc-4955-8708-9278a285d765-io-3-i.en.gif) | 
| Out[3]= |  | 
 
                 
                