<t>Everybody understands smoking is bad for health, it's a proven thing, and I'm not American as you correctly deduced, PaperCut. It was just stunning to me (Russian) to see how smoking/not smoking is SO important. All that talking about how he committed to quitting and then could not make it (he ad...

<t>I came across a few articles about how bad it is that Obama smoked and did not quit completely or something like that. That's ridiculous. Why would one care? And what's stunning is how it is actually considered to be a big deal in the US (smoking or not smoking). Isn't it a similar choice of a li...

<t>I was wondering if it is possible to apply/interview for London-based quant jobs not leaving the US (since I'd have to get a new US visa stamp if I leave the US, and it might take a couple of month) or is it a must to have interviews in London for London-based jobs?. Any advice or previous experi...

<t>I finished my Physics PhD in December and just started looking for quant finance jobs - starting with posting my resume on quantfinancejobs, next morning I got a call at 7 (!) am EST when I was still happily asleep enjoying my unemployment vacation from a SelbyJennings HH. Is it a normal speed of...

<t>QuoteOriginally posted by: jawabeanQuoteOriginally posted by: ShyurikWhat do people in finance get their money for (leaving alone very useful hedging etc.)? The question arose because the only product I see is money for a company you work for obtained from pure speculation or being more accurate ...

And is it intellectually satisfying?

<t>QuoteOriginally posted by: gardener3Presumably, by pure speculation you create much needed liquidity in the financial markets, which allows others to be able to hedge their risk, which in turn (albeit indirectly) helps build better companies, products, services, cure cancer, save the manatees, et...

<t>Hi all,One of the thoughts, which bothered me recently is - suppose you're a trader or a quant or whatever position you hold in the world of finance - what is the product of your work you actually get your salary (very high compared to other jobs) for?What I mean is - suppose you work as a janito...

<t>QuoteOriginally posted by: lemma@vixen,shryuik,othersokies....agreed....i was always thinking of it as coeff of static friction....thanks for pointing out that it is mu(kinetic)...but if it mu(kinetic) = tan(a)....mu(kinetic)*m*g*cos(a) = m*g*sin(a)....can u please explain how there will be an un...

<t>QuoteOriginally posted by: lemma@vixennow i get the point....wen the body begins moving...its kinetic friction everywhere....so the m*g*sin(a)>mu(kinetic)*m*g*cos(a)....agreed...this will trigger the motion along downward direction....and this unbalanced force along downward ll continue till the ...

lemma, the object CAN and WILL travel down the incline, since at t=0 the only force along the incline is the component of gravity mg*sin(A) and the force of friction mu*mg*cos(A) is NOT along the incline, but perpendicular to it in the plane.

<t>QuoteOriginally posted by: vixenWe can easily choose units such that the acceleration due to gravity along the plane = acceleration due to friction = 1. The DE is now-cos(th) = d/dt ( v cos(th) )1 - sin(th) = d/dt ( v sin(th) )where th is the angle of the velocity to the horizontal. Eliminating d...

<t>QuoteOriginally posted by: lemma@Shyurik,1> so in MY co-ordinates, vx(0) = 0 and vy(0) = 0 and vz(0) = v0 <-- this is the initial condition....is this right??2> we agree that the force of gravity is balanced by the force of friction along the incline...hence no unbalanced force and the accelerati...

<t>QuoteOriginally posted by: vixenWe can easily choose units such that the acceleration due to gravity along the plane = acceleration due to friction = 1. The DE is now-cos(th) = d/dt ( v cos(th) )1 - sin(th) = d/dt ( v sin(th) )where th is the angle of the velocity to the horizontal. Eliminating d...

Sorry, here is the picture.\-\--\---\----\-----\------\--------