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3 cards from this section. Quick, good the night before a test.
Define motion in your own words.
Think about how objects move.
What does positive direction mean?
Refer to the convention used in motion.
What defines average speed?
Think about speed definitions.
Is acceleration positive if velocity increases?
Connect acceleration with motion directions.
A car accelerates from 20 m/s to 50 m/s over a time of 5 seconds. Calculate its acceleration.
Apply the formula for average acceleration.
Using the kinematic equations, if an object starts from rest and accelerates at 2 m/s² for 4 seconds, calculate the final position.
Use the appropriate kinematic equation.
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