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What is acceleration?
The rate of change of velocity.
What does it mean if an object has a positive acceleration?
The object is speeding up.
What does it mean if an object has a negative acceleration?
The object is slowing down (decelerating).
How can velocity change?
By a change in speed, a change in direction, or both.
What equation is used to calculate acceleration?
Acceleration = (final velocity − initial velocity) ÷ time