If you pull straight back on the lower pedal of a bicycle, does it move forward or backward? https://www.simonsfoundation.org/multimedia/mathematical-impressions-multimedia/the-bicycle-pulling-puzzle/ …
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If you pull straight back on the lower pedal of a bicycle, does it move forward or backward? https://www.simonsfoundation.org/multimedia/mathematical-impressions-multimedia/the-bicycle-pulling-puzzle/ …