Video Explanation
The origin of the centripetal force
Wall of Death

Demonstration
Ball Bearings in Tabao Container
Nuts and Beans on Spinning Disc
Gravitron and Wall of Death
Water on Rotating Platform (physicsisfun)

Animation
F, v and r

Comics
Fictitious Protest
Locked Room Mystery

Concept Test
1015~  1017~
Disastrous Turn and Disastrous Spin

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