When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: dwphotos Getty Images Centripetal and centrifugal forces are two terms used to describe ...

Learn how to calculate apparent weight on a Ferris wheel by analyzing centripetal acceleration and normal force. This video explains why your weight feels different at the top and bottom of the ride ...

When humanity first started studying motion, circles posed a peculiar puzzle. Why do planets sweep endlessly around the Sun without flying off into the void of space? Why does a stone swung on a ...