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How is kinetic energy derived from work?
- Start with Work: 2. Newton's Second Law: 3. Kinematics: which can be rearranged to 4. Substitute:
What are the steps to derive kinetic energy from work?
- Start with Work: 2. Newton's Second Law: 3. Kinematics: which can be rearranged to a = rac{v_f^2 - v_i^2}{2d} 4. Substitute: W = mad = m(rac{v_f^2 - v_i^2}{2d})d = rac{1}{2}mv_f^2 - rac{1}{2}mv_i^2 = ΔK
What are the differences between kinetic and gravitational potential energy?
Kinetic Energy: Energy of motion, depends on mass and velocity. Gravitational Potential Energy: Energy of position, depends on mass, gravity, and height.
What is the difference between conservative and non-conservative forces?
Conservative forces: Work done is independent of path (e.g., gravity, spring force). Non-conservative forces: Work done depends on path (e.g., friction, air resistance).