Bungee jump goes wrong but a question

davedudes said:
You can tell all this from looking on a Youtube vid?
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You only need two, acceleration and time taken. You know acceleration already as it's constant on earth and you can see how long it takes from snapping until she hits the water. Though it would be more accurate if you knew what velocity she was traveling at when it snapped, but you can probably presume it snapped somewhere around v=0.
 
mrbell1984 said:
Why would anyone want to know or even work outthe distance that it snapped?
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Live in your bubble.
I'd like to know how long the poor girl fell for and lived.

I've played it very slowly and the cord snapped as soon as she got to the bottom of her fall - you can see the cord going in the first pic.
In the bottom picture her splash is the bottom one by the rail on the bridge.

bungee.jpg
 
Deadbeat said:
They're basic components in velocity calculations, they're not derivations based on info in the video.

What do they teach kids in school these days?
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I'm 35 and was not taught this in school, I was classified as thick and not much good at anything, tbh i've learnt more away from that crap-factory.

Just one silly question. Dont you have to take the factor of her weight in order for the equation to be more accurate?:o

Thanks for the reply.
 
davedudes said:
Just one silly question. Dont you have to take the factor of her weight in order for the equation to be more accurate?:o
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Objects of different masses fall at the same speed.

EDIT: This is assuming they have the same drag coefficient etc, but mass is not a factor.
 
davedudes said:
I'm 35 and was not taught this in school, I was classified as thick and not much good at anything, tbh i've learnt more away from that crap-factory.

Just one silly question. Dont you have to take the factor of her weight in order for the equation to be more accurate?:o

Thanks for the reply.
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No.
Go to your local bowling alley and drop two bowling balls of different weights at the same time. They will hit the floor at the same time.
 
It's not miraculous that she didn't die from the fall. it's miraculous that she wasn't eaten by a crocodile, of which there are many in the Zambezi.

Source; I was there three weeks ago.
 
RomanNose said:
No.
Go to your local bowling alley and drop two bowling balls of different weights at the same time. They will hit the floor at the same time.
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Didn't they do the same experiment on the moon? When they dropped a feather and something a lot heavier (can't remember what) and they hit the ground at the same time.
 
Liampope said:
Assuming she actually fell for exactly 3 seconds, and assuming the cable snapped just when it had reduced her velocity to 0 (i.e. was about to start accelerating her back upwards), and ignoring the effects of air resistance for the brief acceleration, then she would have fallen 44 metres.

Having not seen the video they are pretty wild assumptions, though.
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Oh and I forgot to add: Assuming that is valid, she hit the water at about 65 mph. Ouch!
 
Aod said:
It's not miraculous that she didn't die from the fall. it's miraculous that she wasn't eaten by a crocodile, of which there are many in the Zambezi.

Source; I was there three weeks ago.
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From the comments on the Sky News article, apparently the crocs don't stay near the fast-moving rapids so they wouldn't have been that much of a risk.
 
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