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qwen3.5 wrote physics notes

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Keshav Anand
2026-05-05 21:43:12 -05:00
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== UNIT 6: ENERGY AND MOMENTUM OF ROTATING SYSTEMS ==
Rotational systems: combine translational + rotational energy
Rolling objects: total KE = KE_trans + KE_rot
Solid sphere: I = 0.5*M*R^2
Hollow sphere: I = 2/3*M*R^2
Disk/cylinder: I = 0.5*M*R^2
Hoop: I = M*R^2
Angular impulse: J_ang = τ*Δt = ΔL
Angular momentum conserved if Στ_ext = 0
Collisions of rotating systems
Rolling friction vs static friction (no slip = static)
Angular momentum conservation in collisions
Energy conservation includes rotational terms
Angular momentum transfer between objects
Rotational energy transfer via work