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uniform circular motion: Quick Facts

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Uniform circular motion
Five-panel diagram showing a particle's uniform circular motion. Panel A shows position vector r(t) from the origin to a point on a quarter circle, with x, y, and angle theta labeled. Panel B illustrates the change in position vectors and arc length for a small time interval. Panel C shows the velocity vector tangent to the path. Panel D displays velocity vectors at two points. Panel E shows the change in velocity vector and acceleration vector a(t) pointing toward the circle's center. All vecto
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