The graph of f (t) = e -kt sin t with k > 0 is called a

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The graph of f (t) = e-kt sin t with k > 0 is called a damped sine wave; it is used in a variety of applications, such as modeling the vibrations of a shock absorber.

a. Use a graphing utility to graph f for k = 1, 1/2 , and 1/10 to understand why these curves are called damped sine waves. What effect does k have on the behavior of the graph?

b. Compute f'(t) for k = 1 and use it to determine where the graph of f has a horizontal tangent.

c. Evaluatelim et sin t by using the Squeeze Theorem. What does the result say about the oscillations of a damped sine wave?

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Calculus Early Transcendentals

ISBN: 978-0321947345

2nd edition

Authors: William L. Briggs, Lyle Cochran, Bernard Gillett

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