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Section Summary

# Section Summary

• Acceleration is the rate of change of velocity and may be negative or positive.
• Average acceleration is expressed in m/s2 and, in one dimension, can be calculated using $a¯=ΔvΔt=vf−v0tf−to.a¯=ΔvΔt=vf−v0tf−to.$
• The kinematic equations show how time, displacement, velocity, and acceleration are related for objects in motion.
• In general, kinematic problems can be solved by identifying the kinematic equation that expresses the unknown in terms of the knowns.
• Displacement, velocity, and acceleration may be displayed graphically versus time.
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