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# 11 3 acceleration section

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### 11 3 acceleration section

1. 1. Acceleration 11-3
2. 2. Acceleration = A change in speed (Velocity) or direction in an amount of time Speed 2 - Speed1 / t V2 – V1 / t
3. 3. Acceleration Units = m / s2 Units = meters / second /second
4. 4. Slow down—is accelerating Acceleration is speeding up Slowing down is called Deceleration or Negative Acceleration
5. 5. Constant Acceleration = A steady change in velocity The velocity changes by the same amount each second
6. 6. Positive Acceleration Graph Increase at a constant rate = straight line Slope of line = acceleration
7. 7. Negative Acceleration Graph Decrease at a constant rate = straight line sloping downward Slope is negative (Down)
8. 8. Distance-Time Graph Nonlinear graph Curve connects the data points that are plotted
9. 9. Constant High Speed
10. 10. Constant Low Speed
11. 11. Varying Speed Not Moving