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Published bySuzanna Sparks Modified over 6 years ago
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Acceleration The rate at which velocity changes.
Remember, velocity is speed in a given direction. Increasing Speed: A softball accelerates when the pitcher throws it. Decreasing Speed (Deceleration): A car decelerates when it comes to a stop Changing Direction: A Ferris wheel accelerates because it is continuously changing direction
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Calculating Acceleration
The change in velocity during each unit of time. Acceleration = final velocity – initial velocity time
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If velocity is measured in meters/second and time is measured in seconds, the unit of acceleration is meters per second per second. (m/s2)
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Change In Speed Over Time
Time (s) Speed (m/s) 1 8 2 16 3 24 4 32 5 40 The speed increases by the same amount each second
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Acceleration Graph
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