A given scenario of a person falling from a height into a pit attached to a rope can be modeled by the second-order non-homogeneous differential equation mh'' + 5h' + 120h = mg where m is mass of person (in pounds), g is gravity (in feet), 5 is air resistance, and 120 is spring constant of rope. Our initial conditions are h(0)=100 and h'(0)=0 for our initial height and velocity at time t=0. The pit is 75 ft deep and ground level represents height of 0. Problem is, people of different masses will reach different heights and velocities, and we want to make sure that bungee jumping will be safe for everyone (say for people between 20 and 300 pounds). We don't want people to hit the bottom of the pit nor fly up past where they initially jumped from. And We don't want them to experience acceleration greater than say 3 g's. Question is, what is a process for finding the parameters that would meet these conditions and ensure the jumpers would be safe? In other words, how would I figure out what parameters to change (air resistance, spring constant, and/or rope length) and what to change them to to meet the safety conditions?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
Question

A given scenario of a person falling from a height into a pit attached to a rope can be modeled by the second-order non-homogeneous differential equation mh'' + 5h' + 120h = mg where m is mass of person (in pounds), g is gravity (in feet), 5 is air resistance, and 120 is spring constant of rope. Our initial conditions are h(0)=100 and h'(0)=0 for our initial height and velocity at time t=0. The pit is 75 ft deep and ground level represents height of 0. Problem is, people of different masses will reach different heights and velocities, and we want to make sure that bungee jumping will be safe for everyone (say for people between 20 and 300 pounds). We don't want people to hit the bottom of the pit nor fly up past where they initially jumped from. And We don't want them to experience acceleration greater than say 3 g's. Question is, what is a process for finding the parameters that would meet these conditions and ensure the jumpers would be safe? In other words, how would I figure out what parameters to change (air resistance, spring constant, and/or rope length) and what to change them to to meet the safety conditions?

AI-Generated Solution
AI-generated content may present inaccurate or offensive content that does not represent bartleby’s views.
steps

Unlock instant AI solutions

Tap the button
to generate a solution

Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,