Obtain expressions in component form for the position vectors having the following polar coordinates.
(a) 12.6 m, 140° counterclockwise from the +x axis
R with arrow =
(b) 4.00 cm, 50.0° counterclockwise from the +x axis
R with arrow =
(c) 20.0 in., 220° counterclockwise from the +x axis
R with arrow =
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