Physics 2204 Study Guide Unit 3 PDF

Physics 2204 Study Guide Unit 3 1. Work  𝑊 = 𝐹𝑑  𝑊 = 𝐹𝑐𝑜𝑠𝜃𝑑 for pulling at an angle above the horizontal  𝑊 = 𝑚𝑔𝑑 for lifting an object vertically at constant speed 2. Work-Energy Theorem  𝑊 = ∆𝐸𝑘 𝑚𝑣2 2 𝑚𝑣1 2  𝑊=...

Physics 2204 Study Guide Unit 3 1. Work  𝑊 = 𝐹𝑑  𝑊 = 𝐹𝑐𝑜𝑠𝜃𝑑 for pulling at an angle above the horizontal  𝑊 = 𝑚𝑔𝑑 for lifting an object vertically at constant speed 2. Work-Energy Theorem  𝑊 = ∆𝐸𝑘 𝑚𝑣2 2 𝑚𝑣1 2  𝑊= − 2 2 𝑚𝑣2 2 𝑚𝑣1 2  𝐹𝑑 = − 2 2 3. Energy  𝐸𝑔 = 𝑚𝑔ℎ gravitational potential energy 𝑚𝑣 2  𝐸𝑘 = kinetic energy 2 𝑘𝑥 2  𝐸𝑝 = elastic potential energy 2 4. Power 𝑊  𝑃= 𝑡 𝑚𝑔𝑑  𝑃= for lifting vertically 𝑡  𝑃 = 𝑚𝑔𝑣 5. Percent Efficiency 𝐸𝑜𝑢𝑡𝑝𝑢𝑡  % 𝑒𝑓𝑓 = 𝑥 100 𝐸𝑖𝑛𝑝𝑢𝑡 6. Hooke’s Law: 𝐹 = −𝑘𝑥 −𝑘𝑥 7. Simple Harmonic Motion: 𝑎 = 𝑚 8. Elastic Collision: Both momentum and kinetic energy are conserved.