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I CAN DETERMINE THE CHANGE IN POSITION OVER TIME ALONG TWO AXIS.

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Vectors and Scalars Vectors require a magnitude & a direction. – Example: Displacement is a vector. Scalars require only a magnitude. – Example: Distance is a scalar. Add to your CN about position, distance and displacement

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Vector/Scalar example: Millie and Maxine start from their Paris apartment.

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Vector/Scalar example: Millie and Maxine start from their Paris apartment. Maxine drives 3 miles west. Millie drives 3 miles.

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Vector/Scalar example: Millie and Maxine start from their Paris apartment. Maxine drives 3 miles west. Millie drives 3 miles.

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Vector/Scalar example: Millie and Maxine start from their Paris apartment. Maxine drives 3 miles west. Millie drives 3 miles. ?? ? ? ?

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Vector Scalar Displacement answers two questions: How far? Which way? Distance answers one question: How far?

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Vector Scalar Displacement answers two questions: How far? Which way? Distance answers one question: How far?

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One dimensional motion Two dimensional motion

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Adding vectors AB + Place the vectors ‘Head-to-tail’ The ‘arrowhead’ is the head. One dimensional motion

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Adding vectors AB + Place the vectors ‘Head-to-tail’ The ‘arrowhead’ is the head. A B One dimensional motion

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Adding vectors AB + Place the vectors ‘Head-to-tail’ The ‘arrowhead’ is the head. A B One dimensional motion

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A B Remember this? - 12 - 8 -4 0 4 8 12 16 20 24 Does the resultant vector represent the distance or the displacement?

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Adding vectors T W + Place the vectors ‘Head-to-tail’ The ‘arrowhead’ is the head. Two dimensional motion

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Adding vectors Place the vectors ‘Head-to-tail’ The ‘arrowhead’ is the head. Two dimensional motion T W

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T W Vectors can be added in any order. T W Two dimensional motion

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Many vectors can be added together as long as they are the same physical dimension. In other words, displacement vectors can only be added to other displacement vectors. T W A + + A W T Two dimensional motion

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