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Energy and Momentum: Spring Goes Around Track

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The 0.31 kg mass slides on a frictionless wire that lies in the vertical plane. The ideal spring attached to the mass has an equilibrium length of 80 mm and its spring constant is 120 N/m. The mass is released at point A, from rest. Calculate the minimum distance b, if the mass is to slide all the way around the loop to point B.

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Solution Summary

The solution provides simple, easy-to-follow calculations that will lead the reader to the answer of how far a mass attached to a spring will slide under the conditions given in the question.

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So once the mass is in the loop, the spring is in equilibrium. This means that there is no energy on the spring. ...

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