How does mass of the bungee jumper effect a safe jump

[gagzi bear]

Homework Statement

physics major practical, I was supposed to change the mass and find how it effects the safety of the jumper.But since hooks law doesn't follow bungee cord i really can't find a relationship.

Homework Equations

The Attempt at a Solution

I used a bungee cord and hung different masses on it and recorded the relevant extension of the bungee.and I got a curve sort of thing when i graph.
i don't understand how to show how mass effects the safety.
i figured out the conservation of energy equation for this prac
mgh=0.5kx^2 by doing some calculations of PE and KE

 

[haruspex]

First, you need to think what behaviour of the system would be unsafe at a given site.

 

[gagzi bear]

First, you need to think what behaviour of the system would be unsafe at a given site.

im thinking how to show that there is a point where the string would break. and show that using there is a mass it can hold.
ive done my practical changing mass and taking the stretched distance

 

[haruspex]

im thinking how to show that there is a point where the string would break. and show that using there is a mass it can hold.
ive done my practical changing mass and taking the stretched distance

That would depend on the tensile strength of the cord.
There are at least two other safety considerations.

 

[gagzi bear]

That would depend on the tensile strength of the cord.
There are at least two other safety considerations.

yes but i was told to use mass as a factor affecting the safety of a bungee jump.
i don't know how to use my data to find tensile strength

 

[haruspex]

yes but i was told to use mass as a factor affecting the safety of a bungee jump.
i don't know how to use my data to find tensile strength

I mean, two other safety considerations in which mass will be relevant.

 

[gagzi bear]

I mean, two other safety considerations in which mass will be relevant.

wow i don't know that can you please tell me

 

[jbriggs444]

wow i don't know that can you please tell me

It is not our way to spoon feed the answers to school work. You are expected to put in the effort yourself.

What kind of harmful incidents might occur in a bungee jump?

 

[gagzi bear]

It is not our way to spoon feed the answers to school work. You are expected to put in the effort yourself.

What kind of harmful incidents might occur in a bungee jum

the only way i know is because of heavy mass of jumper the string breaks and he hits the ground.
except for like bad jumping

 

[haruspex]

the only way i know is because of heavy mass of jumper the string breaks and he hits the ground except for like bad jumping

Imagine yourself in a bungee jump. As you approach the ground, what do you feel? What possibilities worry you?

 

[gagzi bear]

Imagine yourself in a bungee jump. As you approach the ground, what do you feel? What possibilities worry you?

since I've never been on a bungee jump
i would worry if i would hit the ground.
are you talking about speed or gravity

 

[haruspex]

since I've never been on a bungee jump
i would worry if i would hit the ground.
are you talking about speed or gravity

Yes, hitting the ground is certainly a concern. That would happen if the rope breaks, but there is another way it could happen.
Also consider why an ordinary, but very strong rope would not be suitable.

 

[gagzi bear]

Yes, hitting the ground is certainly a concern. That would happen if the rope breaks, but there is another way it could happen.
Also consider why an ordinary, but very strong rope would not be suitable.

because the stiffness would change the damping effect and would not stretch properly and would lose the fun

 

[jbriggs444]

A particular form of execution is based on stiff ropes...

 

[gagzi bear]

how is that related to bungee jumping

 

[jbriggs444]

Both involve a rope bringing a falling person to a halt.

 

[gagzi bear]

yah makes sense now.
So what do you want me to answer now.
im pretty much stucked in the same place since 12 hours without knowing the answer.
and doing researches
so can you please tell me so that i can take a rest

 

[jbriggs444]

so can you please tell me so that i can take a rest

No. That is not what we are here for.