Centripetal acceleration (ac = v²/r = ω²r)
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ac = v²/r = ω²r
What each symbol means
| Symbol | What it stands for |
|---|---|
| r | Radius (m) |
| v | Speed (m/s) |
| ac | Centripetal acceleration toward center (m/s²) |
| ω | Angular speed (rad/s) |
When to use this
Uniform circular motion: acceleration points toward center with magnitude v²/r.