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PHY 231
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A rubber band begins exerting a tension force when its length is 8 cm. As it is stretched to a length of 10 cm its tension increases with length, more or less steadily, until at the 10 cm length the tension is 3 Newtons.
Between the 8 cm and 10 cm length, what are the minimum and maximum tensions?
answer/question/discussion: ->->->->->->->->->->->-> :
max tension is 3 N, the least tension is 0 N
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Assuming that the tension in the rubber band is 100% conservative (which is not actually the case) what is its elastic potential energy at the 10 cm length?
answer/question/discussion: ->->->->->->->->->->->-> :
3 N
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@& The potential energy change is equal to the work done to stretch the rubber band. 3 N is a force; this quantity doesn't have the units of work or energy, and does not appear to have been caclulated in terms of work.*@
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Solution
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