Would pulling a roll of thread create a sinusoidal function?

please suggest some real life application of sinusoidal wave that i can experiment with...

1 answer

yes, it would, if you are graphing the position of any point on the spool except the center of the axle.

anything involving a rotating object will produce a sinusoidal function. Even alternating electrical current does, since it is produced by rotating magnets.

If you want to play around with graphing, visit

http://rechneronline.de/function-graphs/

where you can enter various formulas and can show up to three at a time. Makes it easy to see how tweaking the parameters affects the graph.