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Motion Diagrams n A series of images of a moving object that records its position after equal time intervals n *see the pictures in your book on pages 45 and 46
Position Vector n an arrow drawn from the origin to the object you are studying n your coordinate system n *see figure 3-9 in your book
Scalar Quantity n this is a number with no direction n example: 55mph
Vector Quantity n this is a number with a direction n example: 55mph North
Displacement n the distance and direction from your stopping position to your starting position n *this is a vector quantity
Distance n the total amount you traveled n *this is a scalar quantity
Velocity n speed with a given direction n formula: V=d / t n units are m/s n average velocity is different from instantaneous velocity
Acceleration n the rate of change of velocity n formula: a = (v f - v o ) / t n units are m/s 2
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