C11 - Angular Momentum

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5 Terms

1

Angular momentum

L = r x p = rmvsinΦ

  • Cross-product: 3 way (i, j, k), results in k vector

2

Ang. momentum & velocity

L = Iω

3

Torque (vector)

τ = r x F

4

Gyroscopic precession

When already-spinning objects rotate in unexpected ways, where their momentum vector “follows” the force/torque vector

5

Precessional frequency

ωr = MgrCM/Iω