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Unformatted text preview: + y sin y' = x sin + y cos a a r a tan a y a x Careful here, positive x is toward the left and positive y downward! Use the fact that the angle the rod makes with the vertical is the same as the angle between a x and a tan and use the information below to write a x and a y as linear combinations of a radial and a tangential (with the appropriate trigonometric functions)....
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 Fall '09
 MS.SIMPSON

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