[熱身賽第一輪] 捲動 [Warm-up Round 1] Rolling

unit: Energy and Momentum of Rotating Systems topic: Rolling learning objective: Describe kinetic energy of a system with translational and rotational motion. essential knowledge: The total kinetic energy of a rolling system is the sum of translational and rotational kinetic energies ($K_{total} = K_{trans} + K_{rot}$). For rolling without slipping, translational and rotational motion are related: $v_{cm} = r \omega$.