Download presentation

Presentation is loading. Please wait.

Published byAmia Garner Modified over 2 years ago

1
Subtracting Vectors A – B = ?

2
Example Problem What is 30 m/s north minus 15 m/s east?

3
Example Problem What is 30 m/s north minus 15 m/s east? Question: How many vectors are there in this problem?

4
Example Problem What is 30 m/s north minus 15 m/s east? Question: How many vectors are there in this problem?

5
Words Math What is 30 m/s north minus 15 m/s east?

6
Mathematically A – B = ? Words Math

7
What is 30 m/s north minus 15 m/s east? Mathematically A – B = ? Words Math The Problem: We only know how to add vectors.

8
The Trick: Make it Addition A – B = A + (– B)

9
The Trick: Make it Addition A – B = A + (– B) Guess: what is – B?

10
Time Out! C This is C

11
Time Out! C Point in the direction of – C!

12
Time Out! C Point in the direction of – C!

13
Time Out! C Point in the direction of – C! - C

14
Continue

15
The Trick: Make it Addition A – B = A + (– B) - B is B in the opposite direction

16
The Trick: Make it Addition A – B = A + (– B) - B is B in the opposite direction

17
Graphical Addition of Vectors 1.Make a scale drawing. 2.Move the vectors tip- to-tail. 3.Draw the resultant vector (free tail to free tip). 4.Measure the length of the resultant with a ruler. 5.Measure the direction of the resultant with a protractor. A + (– B) 1 cm = 5 m/s

18
Graphical Addition of Vectors 1.Make a scale drawing. 2.Move the vectors tip- to-tail. 3.Draw the resultant vector (free tail to free tip). 4.Measure the length of the resultant with a ruler. 5.Measure the direction of the resultant with a protractor. A + (– B) 1) Which are tip-to-tail? 3) 2) 4)

19
Graphical Addition of Vectors 1.Make a scale drawing. 2.Move the vectors tip- to-tail. 3.Draw the resultant vector (free tail to free tip). 4.Measure the length of the resultant with a ruler. 5.Measure the direction of the resultant with a protractor. A + (– B) 1) Which are tip-to-tail? 3) 2) 4)

20
Graphical Addition of Vectors 1.Make a scale drawing. 2.Move the vectors tip- to-tail. 3.Draw the resultant vector (free tail to free tip). 4.Measure the length of the resultant with a ruler. 5.Measure the direction of the resultant with a protractor. A + (– B) 1) Draw the resultant for 1): from point ___ to point ___? 2) c b a

21
Graphical Addition of Vectors 1.Make a scale drawing. 2.Move the vectors tip- to-tail. 3.Draw the resultant vector (free tail to free tip). 4.Measure the length of the resultant with a ruler. 5.Measure the direction of the resultant with a protractor. A + (– B) 1) Draw the resultant for 1): from point ___ to point ___? 2) c b a ac

22
Graphical Addition of Vectors 1.Make a scale drawing. 2.Move the vectors tip- to-tail. 3.Draw the resultant vector (free tail to free tip). 4.Measure the length of the resultant with a ruler. 5.Measure the direction of the resultant with a protractor. A + (– B) 1) Draw the resultant for 2): from point ___ to point ___? 2) f d e

23
Graphical Addition of Vectors 1.Make a scale drawing. 2.Move the vectors tip- to-tail. 3.Draw the resultant vector (free tail to free tip). 4.Measure the length of the resultant with a ruler. 5.Measure the direction of the resultant with a protractor. A + (– B) 1) Draw the resultant for 2): from point ___ to point ___? 2) f d e fd

24
Graphical Addition of Vectors 1.Make a scale drawing. 2.Move the vectors tip- to-tail. 3.Draw the resultant vector (free tail to free tip). 4.Measure the length of the resultant with a ruler. 5.Measure the direction of the resultant with a protractor. A + (– B) 1) Notice: the resultant is the same for option 1) and option 2). 2)

25
Graphical Addition of Vectors 1.Make a scale drawing. 2.Move the vectors tip- to-tail. 3.Draw the resultant vector (free tail to free tip). 4.Measure the length of the resultant with a ruler. 5.Measure the direction of the resultant with a protractor. A + (– B) 1 cm = 5 m/s (6.70)(5) m/s = 33.5 m/s 6.70 cm

26
Graphical Addition of Vectors 1.Make a scale drawing. 2.Move the vectors tip- to-tail. 3.Draw the resultant vector (free tail to free tip). 4.Measure the length of the resultant with a ruler. 5.Measure the direction of the resultant with a protractor. A + (– B) 63˚

27
Graphical Addition of Vectors 1.Make a scale drawing. 2.Move the vectors tip- to-tail. 3.Draw the resultant vector (free tail to free tip). 4.Measure the length of the resultant with a ruler. 5.Measure the direction of the resultant with a protractor. A + (– B) 33.5 m/s @ 63˚ north of west 1 cm = 5 m/s 63˚ Your final answer!

28
Motion Notes (Continued):

Similar presentations

OK

Section 1 Objectives The student should be able to: 1.Distinguish between a scalar and a vector 2.Combine vectors using graphical methods 3.Multiply and.

Section 1 Objectives The student should be able to: 1.Distinguish between a scalar and a vector 2.Combine vectors using graphical methods 3.Multiply and.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on electricity generation in india Download ppt on query processing and optimization ppt Ppt on features of ms excel Ppt on art of war author Ppt on history of china Ppt on bluetooth controlled robot car Ppt on hydrogen fuel cell vehicles bmw Ppt online downloader without java Ppt on asymptotic notation of algorithms pdf Free download ppt on sources of energy for class 10