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Vectors Page 37
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What is a vector? Direction and magnitude
Direction - course of movement Magnitude - size or extent of something
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Velocity The speed of something in a given direction Speed + direction
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Weight Weight = Mass * Fgravity
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How to: Vectors Dot shows where the force begins
Length of the arrow shows the amount of force Arrow shows the direction of the force
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Vectors Practice: 7N
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Vectors Practice: 7N Place the dot
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Vectors Practice: 7N Place the dot
Draw a line from the dot that is seven squares in length
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Vectors Practice: 7N Place the dot
Draw a line from the dot that is seven squares in length
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Vectors Practice: 5N
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Vectors Practice: 5N Place a dot
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Vectors Practice: 5N Place a dot
Draw a line that is 5 squares in length
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Vectors Practice: 5N Place a dot
Draw a line that is 5 squares in length Add the arrow
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Complete # on your own Page 36
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Check your answers 1. F = 4N, right
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Check your answers 1. F = 4N, right 2. F = 7N, down 3. F = 2.5N, right
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Check your answers 1. F = 4N, right 2. F = 7N, down 3. F = 2.5N, right
6. F = 7N, up
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Check your answers 1. F = 4N, right 2. F = 7N, down 3. F = 2.5N, right
6. F = 7N, up 7. F = 7.5N, right
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Check your answers 1. F = 4N, right 2. F = 7N, down 3. F = 2.5N, right
6. F = 7N, up 7. F = 7.5N, right 8. F = 4.5N, left
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Check your answers 1. F = 4N, right 2. F = 7N, down 3. F = 2.5N, right
6. F = 7N, up 7. F = 7.5N, right 8. F = 4.5N, left 9. F = 3N, down
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Check your answers 1. F = 4N, right 2. F = 7N, down 3. F = 2.5N, right
6. F = 7N, up 7. F = 7.5N, right 8. F = 4.5N, left 9. F = 3N, down 10. F = 5.5N, up
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Resultant Vectors Calculate the net force first
Then draw the resultant vector
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Resultant Vector Example: #1
2 total forces 4N to the right 10N to the right Fnet = 4N + 10N = 14N, right Resultant vector - 14N, right Movement? Right
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On your own… Page 34
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Check your answers: #2 2 forces 8N right 13N right
Fnet = 8N + 13N = 21N Resultant = 21N Movement? Right
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Check your answers: #3 2 forces 11N left 9N right Fnet = 11N-9N, left
Resultant = 2N Movement? Left
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Check your answers: #4 2 forces 6N up 6N down Fnet = 6N - 6N = 0N
Resultant = 0N Movement? None
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Check your answers: #5 3 forces 2N up 5N up 5N down 2N + 5N = 7N
Fnet = 7N - 5N = 2N Resultant = 2N Movement? Up
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Check your answers: #6 2 forces 5N down 6N down Fnet = 5N + 6N = 11N
Resultant = 11N Movement? Down
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