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A 3.9 kg ball swings from a string in a vertical circle such that it has...

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Physics

A 3.9 kg ball swings from a string in a vertical circle suchthat it has constant mechanical energy. Ignore any friction fromthe air or in the string. What is the difference in the tensionbetween the lowest and highest points on the circle? Give apositive answer in N.

Answer & Explanation Solved by verified expert
4.4 Ratings (755 Votes)
Let the mass of the ball be m 39 kg Let the speed of the ball at the top of the circle be V1 Let the speed of the ball at the bottom be V2 Let the radius of the circular path in which ball revolves be r Since air friction is neglected total energy of the    See Answer
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