Vectors

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Vectors
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Distance versus Displacement

• A ferry boat captain and a truck driver are
  asked how far it is from Vectorville to Component
  Cove .

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The truck driver's response

• 80 km.

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The ferry boat captain's response

• 50 km.

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Who's right?

• There is a discrepancy in the accuracy of how
  far it is from Vectorville to Component Cove.
• The ferry captain actually has the correct
  answer. When deciding how far it is from one
  place to the next, we need to measure directly
  from point A to point B.

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Distance versus Displacement

• The distance between two points is the total
  "ground" that is covered. This would be how far
  the truck driver traveled.
• Displacement is how far it is from point A to
  point B. This would be how far the ferry boat
  traveled.

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Scalar Quantities

• A scalar quantity has magnitude.
• Distance is a scalar quantity.

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Vector Quantities

• A vector quantity has magnitude and
• direction.
• Displacement is a vector quantity.

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Parts of a vector
Tail Head
Remember that a vector has magnitude and
direction.
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Directions from the classroom

• NORTH
• SOUTH
• EAST
• WEST