Physics, 21.04.2020 00:57, wgdelgado

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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Which statement correctly describes the differences between positive and negative acceleration?