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Khan Academy
Khan Academy: Yo Yo in Vertical Circle Example
In this video, David from Khan Academy explains how to find the tension in a string that is whirling a yo-yo in a vertical circle. [10:30]
Khan Academy
Khan Academy: Mass Swinging in a Horizontal Circle
In this video, David from Khan Academy explains how to solve for the tension and speed of a mass swinging at an angle in a horizontal circle. [12:38]
Khan Academy
Khan Academy: Centripetal Force Problem Solving
In this video, David from Khan Academy gives some problem solving strategies for centripetal force problems and explains many common misconceptions people have about centripetal forces. [14:59]