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Quiz 2 Solution

# Quiz 2 Solution - The position vector QP r s is given by a...

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MEM202 – Engineering Mechanics: Statics Quiz #2 October 4, 2007 Name: __________________________________ Section: ____________________ A. Multiple Choice. Circle ONE answer that best answers the question. [10 points] 1. If you know just A u s , you can determine the ______ of A s uniquely. a) magnitude of A s b) coordinate angles ( α , β and γ ) c) components (A x , A y and A z ) d) all of the above answer: b) 2. A position vector, PQ r s , is obtained by a) coordinates of Q minus coordinates of P b) coordinates of P minus coordinates of Q c) coordinates of A minus coordinates of the origin d) coordinates of the origin minus coordinates of P 3. A force of magnitude F, directed along a unit vector, u s , is give by F s = ________. a) u F s b) F u s c) u F s d) u F s s + answer: a) 4. Two points in 3D space have coordinates of P (1,2,3) and Q (4,5,6) meters.

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