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# Vectors

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Brief introduction into the concept of vectors

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### Vectors

1. 1. Vectors
2. 2. Vocab <ul><li>Vector – Something that has size and direction </li></ul><ul><li>Magnitude – the length of the vector </li></ul><ul><li>Scalar – A non vector quantity. (Something that is not a vector) </li></ul><ul><li>Resultant – The vector sum of two vectors </li></ul><ul><li>Components – The two vectors that make up a resultant. </li></ul>
3. 3. Vector Addition <ul><li>Add vectors tip to tail </li></ul>A B A A B -B R = A + B R = A - B
4. 4. Trig Review
5. 5. <ul><li>A motor boat traveling 4 m/s, East encounters a current traveling 7.0 m/s, North. </li></ul><ul><ul><li>What is the resultant velocity of the motor boat? </li></ul></ul><ul><ul><li>If the width of the river is 80 meters wide, then how much time does it take the boat to travel shore to shore? </li></ul></ul><ul><ul><li>What distance downstream does the boat reach the opposite shore? </li></ul></ul>