Physics and mechanical fundamentals · Circular motion
Centripetal acceleration
Calculate inward acceleration for uniform circular motion from speed and radius.
Method and scope
ac = v²/r.
Use centripetal acceleration for educational calculation or a clearly scoped arithmetic estimate. Intended for Learners, General educational use.
Inputs- Speed — m/s, km/h, mph
- Path radius — m, cm, ft
SOURCE AND LIMITS
Assumptions: The path is circular and instantaneous speed is treated as known. The output is inward acceleration magnitude.
Limitations: Tangential acceleration is not included.
Method version 1.0.0 · Unit registry and result provenance are shown after calculation. This tool is limited to the documented scope.Explore related fields
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