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Adding Vectors at an Angle

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Presentation on theme: "Adding Vectors at an Angle"— Presentation transcript:

1 Adding Vectors at an Angle

2 Communicating Direction
So far we have looked at vectors traveling on exact compass points. What about when they don’t travel exactly N, S, E, or W? We use Degree’s away from our known compass points.

3 Ex: A plane is flying 10 east of north. How do we express this using our knowledge of vectors?? We say that the plane is traveling [10 E of N]

4 Sample: Denise walks to Jean’s home by going one block east and then one block north. Each block is 160m long. What is Denise’s final displacement?

5 Try Questions #1-4 on pg 428

6 Finding the Angle using Trigonometry
SOHCAHTOA What is this? It is a mnemonic to help remember when to use the functions on your calculator to find the correct angle.

7 SOHCAHTOA

8 Using SOHCAHTOA Sample 1:
Denise walks to Jean’s home by going one block east and then one block north. Each block is 160m long. What is Denise’s final displacement?

9 Sample 2: Calculate  for the following triangle:

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