How to Calculate Angular Momentum
What is Angular Momentum?
Angular momentum measures rotational motion analogous to linear momentum. It's conserved in closed systems and calculated as the product of moment of inertia and angular velocity.
Formula
L = I × ω where I is moment of inertia and ω is angular velocity
Step-by-Step Guide
- 1Enter moment of inertia I or calculate from mass/radius
- 2Enter angular velocity ω
- 3Multiply to get angular momentum
Worked Examples
Input
I = 5 kg·m², ω = 3 rad/s
Result
L = 15 kg·m²/s
Angular momentum in standard units
Common Mistakes to Avoid
- ✕Confusing with linear momentum
- ✕Wrong units for angular velocity
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