Download presentation

Presentation is loading. Please wait.

1
**10.2 Vectors and Vector Value Functions**

2
**AB B terminal point A initial point**

Quantities that we measure that have magnitude but not direction are called scalars. Quantities such as force, displacement or velocity that have direction as well as magnitude are represented by directed line segments. B terminal point AB or The length is A initial point or

3
**B terminal point A initial point**

A vector is represented by a directed line segment. Vectors are equal if they have the same length and direction (same slope).

4
y A vector is in standard position (0) if the initial point is at the origin. x The component form of this vector is:

5
y A vector is in standard position if the initial point is at the origin. x The component form of this vector is: The magnitude (length) of is:

6
If P(p1, p2) and Q(q1, q2) are the initial and terminal points of a directed line segment, the component form of the vector v represented by is This means the length (magnitude) of v is

7
**A vector has an initial point at (-3, 4) and terminal point at (-5, 2).**

(-3,4) P The component form of (-5,2) Q is: v (-2,-2)

8
**If v is a nonzero vector in plane, then the vector**

has length 1 and the same direction as v. u is called a unit vector in the direction of v. is the zero vector and has no direction.

9
**Find a unit vector in the direction of**

Ex. Find a unit vector in the direction of One of the vector operations says I can multiply a scalar by both components of a vector. We can make sure this is a unit vector by seeing if the magnitude = 1.

10
Vector Operations: (Add the components.)

11
**u + v is the resultant vector.**

(Parallelogram law of addition) v u

12
Vector Operations: (Add the components.) (Subtract the components.)

13
Vector Operations: Scalar Multiplication: Negative (opposite):

14
**The unit vectors and are called the standard unit vectors in the plane and are denoted by**

These vectors can be used to represent any vector uniquely:

15
Example: Let u be the vector with initial point (2, -5) and terminal point (-1, 3), and let v = 2i – j. Write w = 2u – 3v as a linear combination of i and j.

Similar presentations

OK

Vectors TS: Explicitly assessing information and drawing conclusions. Warm Up: a)What are the coordinates of A and B b)What is the distance between A and.

Vectors TS: Explicitly assessing information and drawing conclusions. Warm Up: a)What are the coordinates of A and B b)What is the distance between A and.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on condition based maintenance plus Bible ppt on how to treat mothers Ppt on management by objectives articles Ppt on disk formatting Perfect competition long run ppt on tv Convert doc file to ppt online maker Ppt on trade fair international Ppt on layout design rules Ppt on disk formatting cd Ppt on history of cricket for class 9 download