chapter03_CM_students

# chapter03_CM_students - Vector Addition Velocity...

• Notes
• 26

This preview shows page 1 - 11 out of 26 pages.

1 •Vector Addition •Velocity •Acceleration •Projectile Motion

Subscribe to view the full document.

2 2 , cont’d Consider someone running on a ship. – If in the same directions, the vectors velocity add.
3 3 , cont’d Consider again someone running on a ship. – If in the opposite directions, the vectors subtract.

Subscribe to view the full document.

4 4 , cont’d What if the vectors are in different but perpendicular directions?
5 5 , cont’d The resulting velocity of the bird (from the bird’s velocity and the wind) is a combination of the magnitude and direction of each velocity .

Subscribe to view the full document.

6 6 , cont’d We can find the resulting magnitude using the Pythagorean theorem , the vectors being perpendicular 2 2 2 2 2 b a c
7 7 , cont’d Let’s find the net speed of the bird in m/s Vector addition tip to tail The direction tan -1 (opp/adj)=tan -1 (6/8) = 36.9deg East to North 10 8 6 2 2

Subscribe to view the full document.

8 To add vectors graphically they must be placed “tip to tail.” The result ( F 1 + F 2 ) points from the tail of the first vector to the tip of the second vector. F 1 F 2 R
9 Adding vectors So far we added -1/ Parallel vectors : the direction of the sum was parallel to the two vectors, the magnitude was obtained by placing the vectors tip to tail and adding the magnitudes -2/ Vectors which were perpendicular : the direction of the Sum was obtained by putting the vectors a

Subscribe to view the full document.

10
• Fall '09
• HUANG

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern