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Unformatted text preview: to Q(1, 2, 3). Find the work done. Do: 1. Let a = 10 , 11 , 2 b = , 3 , 4 a. Find a ⋅ b . b. Find the cosine of the angle between a and b . c. Find the vector projection of a onto b . 2. Find the work done by a force of 20 pounds acting in the direction N 30 o W in moving an object 4 feet due west. 3. Are the following vectors orthogonal, parallel or neither? a . u = 2 , 1 , 5 v = 4 , 2 , 1 b . u = 2 , 1 , 5 v = 4 , 2 , 10 c . u = 2 , 1 , 5 v = 4 , 2 , 2...
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This note was uploaded on 04/12/2008 for the course MATH 1224 taught by Professor Dontremember during the Fall '08 term at Virginia Tech.
 Fall '08
 DONTREMEMBER
 Geometry, Angles, Vectors, Scalar, Dot Product

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