Classical Dynamics of Particles and Systems
Classical Dynamics of Particles and Systems
5th Edition
ISBN: 9780534408961
Author: Stephen T. Thornton, Jerry B. Marion
Publisher: Cengage Learning
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Chapter 3, Problem 3.42P

An undamped driven harmonic oscillator satisfies the equation of motion m(d2x/dt2+ ω02x) = F(t). The driving force F(t) = F0 sin(ωt) is switched on at t= 0. (a) Find x(t) for t > 0 for the initial conditions x = 0 and v = 0 at t = 0. (b) Find x(t) for ω = ω0 by taking the limit ωω0 in your result for part (a). Sketch your result for x(t). Hint: In part (a) look for a particular solution of the differential equation of the form x = A sin(ωt) and determine A. Add the solution of the homogeneous equation to this to obtain the general solution of the inhomogeneous equation.

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