A bungee jumper, mass 80 kg, falls from a bridge with a bungee cord secured to his ankles. He falls 20 m before the 17 m length of elastic bungee cord begins to stretch. The 3 m of rope above the elastic cord has no appreciable stretch. The man is observed to drop a total of 44 m before being projected upward. Neglect any energy loss and calculate: (a) The stiffness, k , of the bungee cord (b) The max velocity of the man during the fall. (c) The max acceleration of the man. Treat the man as a particle located at the end of the cord.

A bungee jumper, mass 80 kg, falls from a bridge with a bungee cord secured to his ankles. He falls 20 m before the 17 m length of elastic bungee cord begins to stretch. The 3 m of rope above the elastic cord has no appreciable stretch. The man is observed to drop a total of 44 m before being projected upward. Neglect any energy loss and calculate: (a) The stiffness, k , of the bungee cord (b) The max velocity of the man during the fall. (c) The max acceleration of the man. Treat the man as a particle located at the end of the cord.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Types of loading

In mechanical terminology, the term load indicates that external force/weight, either constant or variable, acts on a mechanical member/structure. The weight of an object of a specific material is also an external load, and the external force that works on a structure comes under the categories of loading. The external load generates its effects as stress and strain in the structure.

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A bungee jumper, mass 80 kg, falls from a bridge with a bungee cord secured to his
ankles. He falls 20 m before the 17 m length of elastic bungee cord begins to stretch.
The 3 m of rope above the elastic cord has no appreciable stretch. The man is observed
to drop a total of 44 m before being projected upward. Neglect any energy loss and
calculate:
(a) The stiffness, k , of the bungee cord
(b) The max velocity of the man during the fall.
(c) The max acceleration of the man.
Treat the man as a particle located at the end of the cord.

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