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# ch2_1lecture - 2D VECTOR ADDITION Todays Objective Students...

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2–D VECTOR ADDITION Today’s Objective : Students will be able to : a) Resolve a 2-D vector into components b) Add 2-D vectors using Cartesian vector notations.

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APPLICATION OF VECTOR ADDITION There are four concurrent cable forces acting on the bracket. How do you determine the resultant force acting on the bracket ?
SCALARS AND VECTORS (Section 2.1) Scalars Vectors Examples: mass, volume force, velocity Characteristics: It has a magnitude It has a magnitude (positive or negative) and direction Addition rule: Simple arithmetic Parallelogram law Special Notation: None Bold font, a line, an arrow

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VECTOR OPERATIONS   (Section 2.2) Scalar Multiplication and Division
VECTOR ADDITION USING EITHER THE PARALLELOGRAM LAW OR TRIANGLE Parallelogram Law: Triangle method (always ‘tip to tail’): How do you subtract a vector? How can you add more than two concurrent vectors graphically ?

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“Resolution” of a vector is breaking up a vector into components. It is kind of like using the parallelogram law in reverse.
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ch2_1lecture - 2D VECTOR ADDITION Todays Objective Students...

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