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