phy2048 lecture27

phy2048 lecture27 - Chapter 15: Oscillations 151 What Is...

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Unformatted text preview: Chapter 15: Oscillations 151 What Is Physics? 152 Simple Harmonic Motion (SHM) 153 The Force Law for SHM 154 Energy in SHM 155 An Angular SHM 156 Pendulum 157 SHM and Uniform Circular Motion 158 Damped SHM 159 Forced Oscillation and Resonance Chapter 15 Homework 7, 13, 15, 24, 28, 34, 35, 38, 40, 41, 49, 63 Simple Harmonic Motion k Fx = -kx = ma a = - x m d 2x 2 dt x(t ) = xm cos(t + ) v(t ) = -xm sin(t + ) a (t ) = - 2 xm cos(t + ) = - 2 x 2 = T 1 f = T = 2f Spring - Block = k m , T = 2 m k SHM and Reference Circle Uniform Circular Motion: , r = xm, 0 = x(t ) = xm cos(t + ) v x (t ) = -xm sin(t + ) a x (t ) = - 2 xm cos(t + ) Animation ...
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phy2048 lecture27 - Chapter 15: Oscillations 151 What Is...

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