4. 0/5 points| Previous Answers KatzPSEf1 8.P075. My Notes Ask Your Teacher At 2

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4. 0/5 points| Previous Answers KatzPSEf1 8.P075. My Notes Ask Your Teacher At 220 m, the bungee jump at the Verzasca Dam in Locarno, Switzerland, is one of the highest jumps on record. The length of the elastic cord, which can be modeled as having negligible mass and obeying Hooke's law, has to be precisely tailored to each jumper because the margin of error at the bottom of the dam is less than 10.0 m. Kristin prepares for her jump by first hanging at rest from a 12.6-m length of the cord and is observed to stretch the rope to a total length of 15.2 m. (a) What length of cord should Kristin use for her jump to be exactly 220 m? Your response differs from the correct answer by more than 10%. Double check your calculations, m (b) What is the maximum acceleration she will experience during her jump? (Enter the magnitude.) m/s2

Explanation / Answer

stretch per unit length = 12.6/(15.2-12.6) = L/(220-L)

Length of the wire L = 182.4 m

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acceleration a = 9.8 m/s^2

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