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Which statement correctly describes the differences between positive and negative acceleration?
Positive acceleration describes a change in speed; negative acceleration describes no change in speed.
Positive acceleration describes no change in speed; negative acceleration describes a change in speed.
Positive acceleration describes an increase in speed; negative acceleration describes a decrease in speed.
Positive acceleration describes a decrease in speed; negative acceleration describes an increase in speed.

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a69
You can think of this logically. When thought of positively, you are going forward, increasing. Negative is associated with decrease/backwards. The answer that makes the most sense is the 3rd. Positive acceleration describes an increase in speed negative acceleration describes a decrease in speed

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