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Title: A sewing machine needle moves up and down in simple harmonic motion with an ampl Post by: ppk on Mar 22, 2012 A sewing machine needle moves up and down in simple harmonic motion with an amplitude of 1.27 cm and a frequency of 2.55 Hz. How long does it take it to travel 11.43 cm?
A) 3.53 s B) 0.882 s C) 1.13 s D) 1.76 s E) 2.65 s Title: Re: A sewing machine needle moves up and down in simple harmonic motion with an ampl Post by: bio_man on Mar 24, 2012 Content hidden
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