Energy and Momentum of Rotating SystemsTotal Angular Momentum:

L_{total} = \Sigma (\mathbf{r}_i \times \mathbf{p}_i)

or

L_{total} = I_{total} \omega

(for rigid bodies)

Built for May 2027 AP Exam

Total Angular Momentum: $L_{total} = \Sigma (\mathbf{r}_i \times \mathbf{p}_i)$ or $L_{total} = I_{total} \omega$ (for rigid bodies)

Reviewed by ACEpath AP Math Editorial Team

Last Updated: September 2026

On the AP Exam

Concept Review

Topic-Specific Study Method

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Past 10-Year AP Exam Appearance

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TOPIC REVIEW • NEXT STEP IN YOUR LEARNING LOOP

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Start Topic Practice Next Topic: 6.5 Net External Torque: $\Sigma\tau_{ext} = 0$ (or negligible).

Energy and Momentum of Rotating SystemsTotal Angular Momentum:

L_{total} = \Sigma (\mathbf{r}_i \times \mathbf{p}_i)

or

L_{total} = I_{total} \omega

(for rigid bodies)

Built for May 2027 AP Exam

Total Angular Momentum: $L_{total} = \Sigma (\mathbf{r}_i \times \mathbf{p}_i)$ or $L_{total} = I_{total} \omega$ (for rigid bodies)

Reviewed by ACEpath AP Math Editorial Team

Last Updated: September 2026

On the AP Exam

Concept Review

Topic-Specific Study Method

Training & Error Diagnosis

Past 10-Year AP Exam Appearance

Practice Examples

Cheatsheet

TOPIC REVIEW • NEXT STEP IN YOUR LEARNING LOOP

Ready to check your understanding?

Strengthen this topic with AP-style practice, or continue to next topic.

Start Topic Practice Next Topic: 6.5 Net External Torque: $\Sigma\tau_{ext} = 0$ (or negligible).

Energy and Momentum of Rotating SystemsTotal Angular Momentum:

L_{total} = \Sigma (\mathbf{r}_i \times \mathbf{p}_i)

or

L_{total} = I_{total} \omega

(for rigid bodies)

Built for May 2027 AP Exam

Total Angular Momentum: $L_{total} = \Sigma (\mathbf{r}_i \times \mathbf{p}_i)$ or $L_{total} = I_{total} \omega$ (for rigid bodies)

Reviewed by ACEpath AP Math Editorial Team

Last Updated: September 2026

On the AP Exam

Concept Review

Topic-Specific Study Method

Training & Error Diagnosis

Past 10-Year AP Exam Appearance

Practice Examples

Cheatsheet

TOPIC REVIEW • NEXT STEP IN YOUR LEARNING LOOP

Ready to check your understanding?

Strengthen this topic with AP-style practice, or continue to next topic.

Start Topic Practice Next Topic: 6.5 Net External Torque: $\Sigma\tau_{ext} = 0$ (or negligible).