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Average velocity¡ªFigure 3.2
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· Position vector r (x, y, z) is used to locate a particle.
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· The average velocity between two points will have the same direction as the displacement.
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Average acceleration vector¡ªFigure 3.6 |
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Velocity and acceleration¡ªExamples 3.1 and 3.2 |
Example: Average velocity during t=0~2.0 s. |
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Instantaneous velocity at t=2.0 s.  |
Instantaneous acceleration at t=2.0 s.  |
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Parallel and perpendicular components of acceleration |
It is more insightful to resolve the acceleration into parallel and perpendicular components.
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