A Spin Dryer
A sock going round a spin dryer experiences a centripetal force.
At the top of the dryer, the weight of the sock provides a centripetal force and the reaction force is a minimum.

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Key terms in this lesson
- centripetal force
- The resultant force on an object moving in a circle, directed towards the centre of the circle, needed to keep it on its circular path.
More in Circular Motion
- Uniform Circular Motion
- Angular Displacement
- Angular Speed
- Centripetal Acceleration
- Proof - centripetal acceleration
- Centripetal Force
- On the Road
- The London Eye
All 9 lessons in Circular Motion · All OCR A-level Physics topics