CH-3 Review

# CH-3 Review - CH-3 Review Vectors Prepared By: Fady Morcos...

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CH-3 Review Vectors Prepared By: Fady Morcos

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Displacement Vector • A vector has a magnitude and direction. • Displacement vector depends only on initial and final positions. • Vectors are usually denoted as: A or A. • Magnitudes are usually denoted by: | A |
Vector Addition and Subtraction Resultant: C = A + B . The resultant (net) displacement vector is directed from the initial position P1 to the final position P3. Displacement vector depends only on initial and final positions. – If S1 = P1 and S5 = P3, then E = C

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Vector Properties A + B = B + A If C = A + B , then C A + B A + (- A ) = 0 If A is a given vector, 2 A is a vector of the same direction and a magnitude three two as large. -2 A is a vector of the opposite direction, and again, a magnitude two times as large.
Graphical Method Find the vector C for each of the cases below:

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Vector Components x y y x y x A A A A A A A A A = + = = = θ tan sin cos 2 2 The addition or subtraction of vectors is done by adding or subtracting

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## CH-3 Review - CH-3 Review Vectors Prepared By: Fady Morcos...

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