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The Tian2 Study Library AP Edition · Tian2 Editorial Bureau
Volume I · MMXXVI AP Physics C: Mechanics
Library AP Physics C: Mechanics Unit 6: Energy and Momentum of Rotating Systems
⁂   AP Physics C: Mechanics · Unit 6

6. Energy and Momentum of Rotating Systems

10–15% of the AP exam. Key topics: Rotational kinetic energy: K_rot = ½Iω², Work done by a torque: W = ∫τ dθ, Angular momentum of a rigid body: L = Iω, Angular impulse: J_ang = ∫τ dt = ΔL, Conservation of angular momentum (conditions: zero net external torque), Rolling without slipping: constraint v_cm = rω; total KE = ½mv² + ½Iω², Combined energy conservation for rolling objects on inclines, Orbital mechanics and satellite motion (gravitational potential energy, circular orbits).

10–15% exam weight standard track

Unit 6: Energy and Momentum of Rotating Systems

Study guide content for this unit is being prepared. Check back soon for complete lesson notes, formula sheets, and worked examples.

Topics in this unit

  • Rotational kinetic energy: K_rot = ½Iω²
  • Work done by a torque: W = ∫τ dθ
  • Angular momentum of a rigid body: L = Iω
  • Angular impulse: J_ang = ∫τ dt = ΔL
  • Conservation of angular momentum (conditions: zero net external torque)
  • Rolling without slipping: constraint v_cm = rω; total KE = ½mv² + ½Iω²
  • Combined energy conservation for rolling objects on inclines
  • Orbital mechanics and satellite motion (gravitational potential energy, circular orbits)