HELP Physics case study- Bungee jumping

Click For Summary

Homework Help Overview

The discussion revolves around the physics of bungee jumping, specifically focusing on the properties of bungee ropes, such as toughness, elasticity, and brittleness, and how these properties affect the dynamics of a jump. Participants explore the implications of these properties on the forces experienced by the jumper during the fall and at the lowest point of the jump.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants question the effects of different rope properties (brittle, tough, elastic) on the jumper's experience. They discuss the forces acting on the jumper at the lowest point of the jump and the implications of rope elasticity on deceleration and impulse.

Discussion Status

The discussion is active, with participants offering insights into the physics involved and questioning the original poster's understanding of the concepts. There is a focus on exploring the consequences of different rope types without reaching a consensus on specific conclusions.

Contextual Notes

Participants note the original poster's request for assistance in articulating their thoughts on the topic, indicating a struggle with expressing the physics concepts involved in the case study.

someone1235
Messages
4
Reaction score
0
1. Properties of the ideal bungee rope tough? elastic? brittle? and how this could affect the physics of a bungee jump



2. elastic limit



3. Go on about this for 500 words for a full case study
 
Physics news on Phys.org
Hi someone1235 :smile:

Are you asking us to do your homework :rolleyes:
Sorry but Thats not allowed here :-p

what do you think of first one?
What will happen to jumper if rope was brittle, tough and elastic?

think of the effect of force acting on jumper when jumper reaches lowest point (and rope is unstretched in case of elastic rope)
 
cupid.callin said:
Hi someone1235 :smile:

Are you asking us to do your homework :rolleyes:
Sorry but Thats not allowed here :-p

what do you think of first one?
What will happen to jumper if rope was brittle, tough and elastic?

think of the effect of force acting on jumper when jumper reaches lowest point (and rope is unstretched in case of elastic rope)

I'm not asking anyone to do my homework haha , well I'm just stuck for words at the moment because there is nothing I can say apart from "it is stretchy". HELP !
 
imagine you being the jumper
(yes that would be fun)

Now when you reach the bottom ...
In first rope, it will just break and you will fall down under gravity :eek:

In second one, it will stop giving you a jerk *ouch*
here the force acting on you due to rope will give a large deceleration. (can you tell why?)
As the time for stopping will be short, it will have a very (very very) large Impulse
(Hope you know about it, but in case, its Force*time)

This Impulse (according to Newton's second eqn of motion) is change in linear momentum.
So change in momentum will be large and all you bones will be collected in your head

(I'm sure you don't want any of the above to happen)

Now for elastic rope, the force acting on you will increase slowly and you will have small deceleration and thus small impulse and thus small momentum change
(and you'll be safe)
 

Similar threads

  • · Replies 14 ·
Replies
14
Views
6K
  • · Replies 1 ·
Replies
1
Views
6K
Replies
6
Views
3K
  • · Replies 26 ·
Replies
26
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 28 ·
Replies
28
Views
5K
Replies
6
Views
2K
  • · Replies 16 ·
Replies
16
Views
5K
  • · Replies 1 ·
Replies
1
Views
5K
Replies
9
Views
2K