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Energy is a perfectly valid way to solve for the question.
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Scouse Git (2) La Fayette Adam Smith Solomwi and Loinburger will not be forgotten.
"Remember the night we broke the windows in this old house? This is what I wished for..."
2015 APOLYTON FANTASY FOOTBALL CHAMPION! -
Ben, even your algebra is wrong.Solomwi is very wise. - Imran SiddiquiComment
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I know XD
Oh god, if I showed this to my physics teacher his head would probably just burst.
This is priceless
If there is no sound in space, how come you can hear the lasers?
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I can't believe he got it that wrong after a day to think about it.12-17-10 Mohamed Bouazizi NEVER FORGET
Stadtluft Macht Frei
Killing it is the new killing it
Ultima Ratio RegumComment
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Now I think I know why he switched to history.
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I gave this less than five minutes effort, but I'm a lawyer, not a physicist. Somebody correct me if I'm wrong:
Spoiler:
The real dilemma is who I bill for that five minutes.Last edited by Solomwi; May 6, 2010, 19:36.Solomwi is very wise. - Imran SiddiquiComment
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You have the wrong coefficients on your answers.12-17-10 Mohamed Bouazizi NEVER FORGET
Stadtluft Macht Frei
Killing it is the new killing it
Ultima Ratio RegumComment
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Originally posted by KrazyHorse View Post
Typed it in as I had it written down without looking to see what it actually said (that is, if what I corrected is what you're referring to).Solomwi is very wise. - Imran SiddiquiComment
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What was your original answer solomwi?If there is no sound in space, how come you can hear the lasers?
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Take the parentheses out of the expression for t. As it read, but inadvertently, I had Mu*g on the other end of the fraction.Originally posted by Hauldren Collider View PostSolomwi is very wise. - Imran SiddiquiComment
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I think your coefficients are still wrong, or I could be making a dumb mistake. I just did this problem myself (lost my original answer, and besides I should study for my AP anyway) and got:
a. S/(3gu)
b. S/3
c. 0 (duh, this is my favorite one. did ben answer this one? I want to know what his answer was.)
Only spent a few minutes on it so I could have made some careless error.If there is no sound in space, how come you can hear the lasers?
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Why is it (S/2)?
edit: crosspostComment
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By the way here are the followup questions that don't have latex:
d) Develop expressions for the following energies:
i) The initial kinetic energy in the moving slab before the block is placed on top of it
ii) The final kinetic energy of the slab, once the objects are moving together
iii) The final kinetic energy of the block, once the objects are moving together
iv) The amount of energy removed from the slab's kinetic energy by the frictional force
v) The amount of energy delivered to the block's kinetic energy by the frictional force
vi) The amount of energy "converted to heat" in the process.
if anyone is bored enough to attempt themIf there is no sound in space, how come you can hear the lasers?
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Your answer would be right if the masses were the same, I believe12-17-10 Mohamed Bouazizi NEVER FORGET
Stadtluft Macht Frei
Killing it is the new killing it
Ultima Ratio RegumComment
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who, me or solomwi
solomwi i think
EDIT: also looking at those followup questions, they are really freaking easy.If there is no sound in space, how come you can hear the lasers?
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