A ball is attached to the end of a string. It is swung in a vertical circle of radius 2.25 m. What is the minimum velocity that the ball must have to make it around the circle?These videos are part of a unit of instruction created by NJCTL. Students and teachers can find additional free instruction on this topic at the site listed below. This includes the full unit presentation, homework with solutions, and assessments (teachers only).Uniform Circular Motion Presentation - http://njctl.org/courses/science/algebra-based-physics/uniform-circular-motion/uniform-circular-motion-presentation-2/
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