Centripetal vs Apparent Centrifugal Force Demonstrated with a Shepherd's Sling and a Tennis Ball

In this video we begin with a review of Newton's First Law of Motion and then go into a diagrammatic description of centripetal force vs. apparent centrifugal force followed by a real world demonstration with a shepherd's sling. The shepherd's sling is an easy way to do a controlled release of an object moving in a circular path. This video should make it easy to understand centripetal force and apparent centrifugal force.

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