Relationship between linear and angular quantities
What Relationship between linear and angular quantities means in Physics A-Level, as defined for OCR.
Definitions of Relationship between linear and angular quantities
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Reference: OCR
The linear speed v is related to the angular velocity ω and the radius r by v = ωr, where v is in m s⁻¹, ω in rad s⁻¹ and r in m.
Since v = ωr, substituting gives F = m(ωr)²/r = mω²r, so F = mω²r.
Topics that use Relationship between linear and angular quantities
- Centripetal force (OCR A-Level)
Related terms
- Centripetal acceleration
- Centripetal force
- Difference between speed and velocity
- Newton's first law and inertia
- Rigid-body rotation
- Vector nature of velocity and acceleration
- Centripetal acceleration magnitude and direction
- Constant speed in circular motion
Using Relationship between linear and angular quantities in the exam
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