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Acceleration, Speed, and Velocity

Acceleration, Speed, and Velocity. Ch 2 Sect 2. Acceleration. Acceleration is the rate of change of velocity When an objects velocity is changing then it is accelerating Change in velocity occurs when an object changes its speed, direction or both. Types of Acceleration.

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Acceleration, Speed, and Velocity

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  1. Acceleration, Speed, and Velocity Ch 2 Sect 2

  2. Acceleration • Acceleration is the rate of change of velocity • When an objects velocity is changing then it is accelerating • Change in velocity occurs when an object changes its speed, direction or both

  3. Types of Acceleration • There are three main types of acceleration that you will be required to know • Positive acceleration- (+) acceleration occurs when an object is speeding up • Negative acceleration- (-) acceleration occurs when an object is slowing down • Constant acceleration- Acceleration that is not changing

  4. Calculating Acceleration • Acceleration=Change in Velocity Time • A = (vf-vi) t • vf = final Velocity • vi = initial Velocity • t = time

  5. Motion and Acceleration • If motion is in a single direction you use speed to find acc. • (sf-si) • SI unit for velocity • m/s/s or m/s2

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