Bungee-cord jump. A 60.5 kg bungee-cord jumper is on a bridge 49.0 m above a river. In its relaxed state, the elastic bungee cord has length L = 24.5 m. Assume that the cord obeys Hooke's law, with a spring constant of 173 N/m. (a) If the jumper stops before reaching the water, what is the height h of her feet above the water at her lowest point? (b) What is the net force on her at her lowest points (in particular, is it zero)? (a) Number (b) Number 21 Units m Units N

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter8: Conservation Of Energy
Section: Chapter Questions
Problem 75PQ: At 220 m, the bungee jump at the Verzasca Dam in Locarno, Switzerland, is one of the highest jumps...
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Bungee-cord jump. A 60.5 kg bungee-cord jumper is on a bridge 49.0 m above a river. In its relaxed state, the elastic bungee cord has
length L = 24.5 m. Assume that the cord obeys Hooke's law, with a spring constant of 173 N/m. (a) If the jumper stops before reaching
the water, what is the height h of her feet above the water at her lowest point? (b) What is the net force on her at her lowest points (in
particular, is it zero)?
(a) Number
(b) Number
21
Units
m
Units
N
Transcribed Image Text:Bungee-cord jump. A 60.5 kg bungee-cord jumper is on a bridge 49.0 m above a river. In its relaxed state, the elastic bungee cord has length L = 24.5 m. Assume that the cord obeys Hooke's law, with a spring constant of 173 N/m. (a) If the jumper stops before reaching the water, what is the height h of her feet above the water at her lowest point? (b) What is the net force on her at her lowest points (in particular, is it zero)? (a) Number (b) Number 21 Units m Units N
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