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Unformatted text preview: Example The wind is blowing at 16 mph in the direction of N60 E. Express its velocity as a vector v in terms of i and j. Application Example 1 2 1 2 Two forces F and F , of magnitude 5 lbs and 12 lbs, respectively act on an object. The direction of F is N20 E and the direction of F is N75 E. Find the magnitude and the direction of the resultant force. Express the magnitude to the nearest hundredth of a pound and the direction angle to the nearest tenth of a degree. (a) (b) (c) (d) If u= 3i+4j, v=2ij find 2u+vi+3j 4ij 5i+3j4i+7j (a) (b) (c) (d) Find the magnitude of the vector v=3i+4j 5 6 7 8...
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 Fall '11
 jayjohn

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