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7.5 VectorsObjectives:

- Definition of Vectors

- Position Vectors

- Equivalent Vectors

-Vector Magnitude

- Vector Mathhttps://www.youtube.com/watch?v=bOIe0DIMbI8

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Determine whether the vectors AB and CD are equivalent.

A(1,0) B(3,4) C(-1,2) D(1,6)

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Homework: pg 668 #15-33/3

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7.5 VectorsObjectives:

- Unit Vectors

- Write a vector in terms of magnitude and

direction

- Find magnitude and direction of a vector

- Use Vectors in applications

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Example: Finding a Unit VectorFind a unit vector u in the same direction as v = < 3, ­4 >

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Example Vectors involving i and jFind each expression where u = 4i + 7j and v = 2i + 5j

a. u ­ 3v b. II 3u + 2v II

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Example 7 Finding the Direction Angle of a VectorFind the direction angle x of the vector v = ­4i + 3j

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Find the magnitude and bearing of the resultant R of two forces F1 and F2, where F1 is a 50 lb force acting northward and F2 is a 40 lb force acting eastward

Homework: pg 668 #36-60/3, 69 and 70