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Download 12-1 Simple Harmonic Motion Equilibrium Position Restoring
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Transcript
Simple Harmonic Motion 12-1 • Vibration about an equilibrium position in which a restoring force is proportional to the displacement from equilibrium Simple Harmonic Motion Equilibrium Position Restoring Force • Force that causes simple harmonic motion • Proportional to the displacement • Maximum displacement • • • • – Acceleration is maximum – Velocity is zero Position where net force is equal to zero Natural resting place Velocity is at maximum Acceleration is zero Felastic = -kx † Simple Pendulum Simple Harmonic Motion • Restoring force is the bob’s weight • Weight is broken into perpendicular components • The net force is the gravitational force in the x-direction 1 Energy Changes in SHM • Potential energy is proportional to displacement • Kinetic energy is inversely proportional to displacement 2
