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Would anyone know where I could find these solutions? I think there might have been a similar thread but I can't seem to find it. I need the solutions for the 2005 Ext1 Maths Paper most -- I have this one: http://exampapers.web.fc2.com/tests/hs/y12/maths/HSC3USolutions/2005.pdf but the solutions...

my school is in the top 20 and I'm ranked in the top 10% of the cohort, I was just really lazy after trials and didn't pay attention in class :S -- do you reckon if i do get 60/84 - i'd be able to get like 91-92? mechanics, harder ext1 + binomials to cover in 3 weeks -- yeah I'm fucked.

yeah im fucked

Just did the 2010 Maths Ext1 Paper, got a score of 60/84 (left out all the binomial questions because I haven't started binomials yet). Is this enough to get an E4? Or just a high E3? thanks

I'm hoping that would be enough to get an E4, but I haven't done any other papers, so I don't know if 2009 paper was a lot easier than the other ones -- what HSC mark do you reckon I'd get?

wait a minute... Spiralflex is in Yr11? Bloody oath i thought he was in uni lmao

SILLY mistakes at its finest. yes i found x = 27 when y' = 0 :( :( inb4 E3 at the HSC...

http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2002exams/pdf_doc/mathemat_ext1_02.pdf PROJECTILES QUESTION: For Q6 (a) part (iii) I got a maximum height of 27m, however the answers my teacher provided state that it is 15\frac{1}{8}\textup{metres} Can someone please check the answer for me...

Hi guys, having trouble with (ii) of this question Q. A small body is projected vertically downwards, with velocity u, in a medium which offers a resistance kv per unit mass when the speed is v. (i) Prove that the speed approaches a limit that is independent of u. (ii) T seconds later...

Sketch: x = \frac{-4}{3}e^{3-3t} - 2t + \frac{10}{3} Sorry I've no idea what to do with this question, what are some starting steps I can employ to determine the shape of the graph and then sketch it? Thank you, appreciate the help :)

so is the answer to (i) 6.6666m? Also (ii) FInd the time required for speed to reduce to 20m/s -- i got 0.2 seconds is that wrong or right?

Hi guys, this seems like a relatively simple question, there's just one tiny thing I'm having trouble with: Q. A particle moves in a straight line against a resistance of magnitude kv per unit mass. At a fixed point O on the line, the initial speed is 50m/s, and the speed is reduced to 5m/s...

impressive solution drongoski, my one was at least 3-4 times the length of your solution...

thank you everyone :)

Can someone please verify if this is right? If it is, then t = 1.48 is the answer, meaning that the second stone would only take 0.48 seconds to overtake the first stone... i don't know if that is a plausible answer...

Can someone please verify if this is right? If it is, then t = 1.48 is the answer, meaning that the second stone would only take 0.48 seconds to overtake the first stone... i don't know if that is a plausible answer...

soz but yeah I'm pretty noob at maths (i just started projectile/SHM a few days ago): Ok so deriving the displacement equation for the first stone: x'' = g = 9.8 (I made the downwards direction be positive) x' = gt + c --> x' = 0 when t = 0, therefore x' = gt x = g(t^2)/2 + D --->...

Sorry but I have no idea what to do with this question: Q. A stone is let fall from a tall building and 1 second later another stone is projected vertically downwards with a velocity of 20m/s. When will the second stone overtake the first? Can someone please explain to me what I am meant to...

fuuuckk that 2mark question took me bloody 11 minutes, mainly because i wrongly put in a "12" instead of a "25" so I got an answer that didn't accord with my graph and it took me 8minutes to realise what i had done wrong-- fuuuuu so stupid, brb gonna fail my hsc Also, I meant 2004 HSC question lol

http://boardofstudies.nsw.edu.au/hsc_exams/hsc2004exams/pdf_doc/maths_ext1_04.pdf I got 4:28 am -- can anyone check my answer? My solution: equation for simple harmonic motion @ harbour entrance (not the wharf) is y = 3cos(4pi(t)/25) + b --> where b is the centre of motion. As the...