2. SWINNEYPSP 2002 PROJECTILE MOTION Vector Analysis

3. What is a vector? nAny quantity that shows both magnitude and direction nExamples - Velocity - Acceleration - Force

4. How do we represent vectors? èWe use an arrow to show relative size and direction of vectors.

5. What is a scalar? Any quantity that has size but no direction Examples - Speed - Distance - Temperature

6. Can you tell the difference? Vector VS Scalar

7. Vector Addition +Combining two or more vectors together makes a….

8. How do we combine or construct vectors? 1. In the same direction you add the vectors Example - tailwind (notice a bigger arrow means a bigger speed.)

9. How do combine or construct vectors? 1. In the opposite direction you subtract the vectors Example - headwind (notice a smaller arrow means a smaller speed.)

10. What if…... 10 N left and another 25 N left? 10 N right and 40 N left? 40 N left and 20 N right? 15 N up and 40 N down? Get the point????

11. What if??? 10 m/s wind is blowing toward the east while a plane is flying north at 100 m/s?

12. Vector Strategies Parallelogram Method Components

13. Parallelogram Method Connect the vectors by their tails Draw a parallelogram The diagonal is the resultant Let’s try...

14. 100 m/s north 10 m/s east

15. How do you break down vectors? This is known as resolving vectors. It is the opposite of constructing vectors. You are separating the two components

16. COMPONENTS Every vector has a horizontal and vertical component. From the vector, draw a horizontal and vertical line. Where they cross, defines the components.

17. More specifically…. Draw a vertical and horizontal line from its tail. Measure over from the resultant to these lines to form your rectangle. Draw in the arrows. Let’s try….

18. Horizonal (X) Component Vertical (Y) Component

19. SO WHAT????? Why would we use vectors? Next time….. PROJECTILE MOTION