AP_Physics_B_-_Methods_of_Motion

# AP_Physics_B_-_Methods_of_Motion - MethodsofMotion AP...

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Methods of Motion AP Physics B

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Displacement Displacement (x or y) "Change in position" It is not necessarily the total distance traveled. In fact, displacement and distance are entirely different concepts. Displacement is relative to an axis. o "x" displacement means you are moving horizontally either right or left. o "y" displacement means you are moving vertically either up or down. o The word change is expressed using the Greek letter DELTA ( Δ ) . o To find the change you ALWAYS subtract your FINAL - INITIAL position o It is therefore expressed as either Δx = x f - x i o r Δy = y f - y i Distance - How far you travel regardless of direction.
Example Suppose a person moves in a straight line from the lockers( at a position x = 1.0 m) toward the physics lab(at a position x = 9.0 m) , as shown below The answer is positive so the person must have been traveling horizontally to the right.

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Example Suppose the person turns around! The answer is negative so the person must have been traveling
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AP_Physics_B_-_Methods_of_Motion - MethodsofMotion AP...

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