N At 220 m, the bungee jump at the Versace Dam in Locarno, Switzerland. is one o
ID: 1533245 • Letter: N
Question
N At 220 m, the bungee jump at the Versace Dam in Locarno, Switzerland. is one of the highest jumps an 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 10.0-m length of the cord and is observed to stretch the rope to a total length of 12.5 m. What length of cord should Kristin use for her jump to he exactly 220 m? What is the maximum acceleration she will experience during her jump?Explanation / Answer
stretch per m of the rope = 2.5/10 = 0.25 m
for L lenght of rope
stretch = L*0.25
total length after streetch = L + (0.25L) = 1.25L
total length = 220 m
1.25L = 220
length of the rope needed = 176 m
--------------------
F = k*A = m*a
mg/dx*A = m*a
a = g*A/dx = 9.8*(220-176)/2.5 = 172.5 m/s^2
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