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A carnival merry-go-r...
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A carnival merry-go-round rotates about a vertical axis at a constant rate. A man standing on the edge has a constant speed of
3.39 m/s and a centripetal acceleration of magnitude 2.13 m/s2. Position vector locates him relative to the rotation axis. (a) What is
the magnitude of 7? What is the direction of 7 when a is directed (b) due east and (c) due south?
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