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August 4, 2015

Homework Help: Physics Simple Harmonic Motion

Posted by John on Tuesday, April 5, 2011 at 2:55pm.

A sewing machine needle moves with a rapid vibratory motion, rather like SHM, as it sews a seam. Suppose the needle moves 8.4 mm from its highest to its lowest position and it makes 27 stitches in 8.5 s. What is the maximum needle speed?

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