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Unformatted text preview: moore (jwm2685) HW06 gilbert (55485) 1 This printout should have 10 questions. Multiplechoice questions may continue on the next column or page find all choices before answering. 001 10.0 points Which, if any, of the following A. QP , B. PQ, are representations of vectors when P, Q are points in 3space? 1. B only 2. A only correct 3. both of them 4. neither of them Explanation: A. TRUE: QP is the displacement vector having initial point P and terminal point Q . B. FALSE: PQ is the line segment from P to Q . keywords: vectors, scalars, T/F, line segment, displacement vector, length 002 10.0 points When u , v are the displacement vectors u = AP , v = AC , determined by the parallelogram A B C P Q R S O express AQ in terms of u and v . 1. AQ = 1 2 v u 2. AQ = 1 2 u 3. AQ = 1 2 u + v 4. AQ = 1 2 v 5. AQ = 1 2 u v 6. AQ = u + 1 2 v correct Explanation: By the parallelogram law for the addition of vectors we see that AQ = u + 1 2 v . 003 10.0 points Find the vector v having a representation by the directed line segment AB with respect to points A (2 , 2) and B ( 4 , 3)....
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 Spring '07
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