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# The Super Juicy CURRENT YEAR 11 (2012-13) THREAD Mark V Watch

1. (Original post by EduWiz)
Whos the boss
Me. Zed has risen to take the throne.
2. (Original post by MrGoogle)
This is a nice problem, and it's differential; [-GMem/x^2]-[-GMmm/(r-x)^2]

However, when you equate this to zero you get an issue! You can never have a value of x for which you divide the constants by to get zero! 1/x can never equal zero!

So your graph shoots off to infinite! The solution looks something like this.. (assuming an 80kg astronaut)

Attachment 207865
However, that would give a solution of around 6'800km. I'm not convinced your original equation was correct though.
The gravitational pull of something is equal to [GMobject]/r^2, so the point where the 2 attractions balance

[G*Me]/r^2=[G*Mm]/R^2

Given G and the Masses are constant you could solve for R like that.

This may all be rubbish, but just my ideas. Sorry if this wastes your time!
Woow looks complicated !! Is this even GCSE ?
3. (Original post by MrGoogle)
This is a nice problem, and it's differential; [-GMem/x^2]-[-GMmm/(r-x)^2]

However, when you equate this to zero you get an issue! You can never have a value of x for which you divide the constants by to get zero! 1/x can never equal zero!

So your graph shoots off to infinite! The solution looks something like this.. (assuming an 80kg astronaut)

Attachment 207865
However, that would give a solution of around 6'800km. I'm not convinced your original equation was correct though.
The gravitational pull of something is equal to [GMobject]/r^2, so the point where the 2 attractions balance

[G*Me]/r^2=[G*Mm]/R^2

Given G and the Masses are constant you could solve for R like that.

This may all be rubbish, but just my ideas. Sorry if this wastes your time!
What the **** is this?
4. (Original post by Bluffroom)
have you even tried it?
Well... no... not really... but the thought of cheese disgusts me, I don't think I've ever eaten cheese out of choice, the first time I could speak out against it, I stopped eating it.
5. (Original post by Bude8)
You obviously, L'Evil Fish knows that he shouldn't disrespect the boss.
How do I go about disrespecting myself anyway?
6. (Original post by PriyaPaul)
Woow looks complicated !! Is this even GCSE ?
Looks like A-level stuff to me.
7. (Original post by MrGoogle)
x
No need to be so polite to the boss
Answer:

Cancel G and m

(Original post by EduWiz)
Whos the boss
I'm the boss
8. (Original post by L'Evil Fish)
How do I go about disrespecting myself anyway?
Good one.
9. (Original post by zed963)
Me. Zed has risen to take the throne.
ahahahaahaahahahaahhahahahahah

(Original post by zed963)
What the **** is this?
i was just thinking the same thing
10. Secondly Bude, solving for where the pulls are equal assumes there is one point. In reality, there's millions of points! So it can't really be solved.. You can't solve the equation I wrote, nor any equation to this end.. You can imagine all the points where the forces are equal, at different distances from the 2 bodies.
11. Does Bude do IB?
12. (Original post by zed963)
Me. Zed has risen to take the throne.
You Zed or this Zed?
Spoiler:
Show

13. (Original post by zed963)
Good one.
14. (Original post by MrGoogle)
This is a nice problem, and it's differential; [-GMem/x^2]-[-GMmm/(r-x)^2]

However, when you equate this to zero you get an issue! You can never have a value of x for which you divide the constants by to get zero! 1/x can never equal zero!

So your graph shoots off to infinite! The solution looks something like this.. (assuming an 80kg astronaut)

Attachment 207865
However, that would give a solution of around 6'800km. I'm not convinced your original equation was correct though.
The gravitational pull of something is equal to [GMobject]/r^2, so the point where the 2 attractions balance

[G*Me]/r^2=[G*Mm]/R^2

Given G and the Masses are constant you could solve for R like that.

This may all be rubbish, but just my ideas. Sorry if this wastes your time!
This doesn't looks complicated, my mind is still trying to get round it
15. (Original post by zed963)
Does Bude do IB?
This September.
16. (Original post by Vionar)
Well... no... not really... but the thought of cheese disgusts me, I don't think I've ever eaten cheese out of choice, the first time I could speak out against it, I stopped eating it.
I think you should try it
17. (Original post by MattFletcher)
This doesn't looks complicated, my mind is still trying to get round it
Ask me this question next year and I'm sure I'll be able to answer it.
18. (Original post by Elm Tree)
And you say I'm weird
yh cuz u r, u mad cuz i op op op
19. (Original post by Bude8)
Answer:

Cancel G and m

Clever, didn't think to do it like that.. Where the hell did you pull that problem from? Was not from a GCSE or A-Level textbook..!
20. (Original post by Bude8)
No need to be so polite to the boss
Answer:

Cancel G and m

I'm the boss
hahahahahahahahahhahahahahahhaha hahhahahahahahhahahhaha
Spoiler:
Show
NO

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