Why don't I fall out when a roller coaster goes upside down

Gravity is counteracted by centripetal force, due to acceleration, which is the force that pushes you into your seat. Roller coaster,  Seaside Heights,  New Jersey.  John Margolies, photographer, 1978. Prints & Photographs Division, Library of Congress. Have you ever wondered how roller coasters stay on their tracks and why people can hang upside down in … Continue reading “Why don’t I fall out when a roller coaster goes upside down?”

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